Instruct: Given a legal statement, retrieve articles that support the statement.
Query: 
Even if the contractor agrees to a special agreement to the effect that the contractor will not be liable for the warranty against defects, the contractor may not be released from the contractor's liability with respect to facts the contractor knew and did not disclose.


Article 559
The provisions of this Section apply mutatis mutandis to contracts for value other than contracts for sale;provided, however, that this does not apply when it is not permitted by the nature of the contract for value.
Article 572
Even if the seller makes a special agreement to the effect that the seller does not warrant in the case prescribed in the main clause of Article 562, paragraph (1) or Article 565, the seller may not be released from that responsibility with respect to any fact that the seller knew but did not disclose, and with respect to any right that the seller personally created for or assigned to a third party..


Article 117 (1) A person who concludes a contract as an agent of another person is liable to the counterparty for the performance of the contract or compensation for loss or damage, as chosen by the counterparty, unless the person proves the authority to represent or the principal ratifies the contract.


Article 566 If the subject matter delivered by the seller to the buyer does not conform to the terms of the contract with respect to the kind or quality, and the buyer fails to notify the seller of the non-conformity within one year from the time when the buyer becomes aware of it, the buyer may not demand cure of the non-conformity of performance, demand a reduction of the price, claim compensation for loss or damage, or cancel the contract, on the grounds of the non-conformity; provided, however, that this does not apply if the seller knew or did not know due to gross negligence the non-conformity at the time of the delivery.


Article 566
If the subject matter delivered by the seller to the buyer does not conform to the terms of the contract with respect to the kind or quality, and the buyer fails to notify the seller of the non-conformity within one year from the time when the buyer becomes aware of it, the buyer may not demand cure of the non-conformity of performance, demand a reduction of the price, claim compensation for loss or damage, or cancel the contract, on the grounds of the non-conformity;provided, however, that this does not apply if the seller knew or did not know due to gross negligence the non-conformity at the time of the delivery..


Article 130
(1) If a party that would suffer a detriment as a result of the fulfillment of a condition intentionally prevents the fulfillment of that condition, the counterparty may deem that the condition has been fulfilled.
(2) If a party who would enjoy a benefit as a result of the fulfillment of a condition wrongfully has that condition fulfilled, the counterparty may deem that the condition has not been fulfilled..


Article 349
The pledgor may not, either by the acts establishing pledges or by contracts made prior to the due dates for the obligations, allow the pledgee to acquire ownership of the thing pledged as satisfaction of the obligations, nor promise to allow the pledgee to dispose of it in any manner other than is prescribed by law..


Article 496
(1) As long as the obligee does not accept the deposit, or the judgment which pronounces that the deposit is effective does not become final and binding, the performer may recover the deposited thingy. In such case, it is deemed that no deposit has been effected.
(2) The provisions of the preceding paragraph do not apply in cases any pledge or mortgage has been extinguished due to the deposit..


Article 400
If the subject matter of a claim is the delivery of a specific thing, the obligor must retain the thing with the due care of a prudent manager, which is determined in light of the contract or other sources of claims and the common sense in the transaction, until the delivery..


Article 641
The party ordering work may cancel the contract at any time whilst the contractor has not completed the work by paying compensation for loss or damage..


Article 634
In the following cases, if the party ordering work receives any benefit from the performance of any divisible portion of the outcome of the work that the contractor has already completed, that portion is deemed to be the completed work; in this case, the contractor may demand remuneration in proportion to the benefit to be received by the party ordering work:
(i) if the contractor is no longer able to complete the work due to any grounds not attributable to the party ordering work; or
(ii) if the contract for work is cancelled before the completion of work.
Article 536
(1) If the performance of an obligation becomes impossible due to grounds not attributable to either party, the obligee may refuse to perform counter-performance.
(2) If the performance of an obligation becomes impossible due to grounds attributable to the obligee, the obligee may not refuse to complete counter-performance. In such a case, if the obligor benefits from being released from that obligation, the obligor must reimburse the obligee for the benefit..


Article 632
A contract for work become effective when one of the parties promises to complete work and the other party promises to pay remuneration for the outcome of the work.
Article 633
Remuneration must be paid simultaneously with delivery of the subject matter of work performed;provided, however, that if no delivery of a thing is required, the provisions of Article 624, paragraph (1) apply mutatis mutandis.
Article 624
(1) An employee may not demand remuneration until the work the employee promised to perform has been completed.
(2) Remuneration specified with reference to a period may be claimed after the passage of that period..


Article 533
A party to a bilateral contract may refuse to perform that party's own obligation until the other party tenders the performance of that other party's obligation (including the performance of an obligation to compensate for loss or damage in lieu of the performance of an obligation);provided, however, that this does not apply if the obligation of the other party is not yet due..


Article 117 (1) A person who concludes a contract as an agent of another person is liable to the counterparty for the performance of the contract or compensation for loss or damage, as chosen by the counterparty, unless the person proves the authority to represent or the principal ratifies the contract.


Article 707
(1) If a person that is not an obligor has performed an obligation by mistake and the obligee, acting in good faith, has allowed the instrument to be lost, has damaged the instrument, has waived the security, or has lost the claim by prescription, the person performing the obligation may not demand the return of subject matter of the performance.
(2) The provisions of the preceding paragraph do not preclude the person performing an obligation from exercising the right to reimbursement against the obligor..


Article 515
(1) A novation by substitution of obligee may be effected by a contract concluded among the obligee prior to the novation, a person that becomes the obligee after the novation, and the obligor.
(2) A novation by substitution of obligee may not be duly asserted against a third party unless it is made using an instrument bearing a certified date..


Article 537
(1) If one of the parties promises in a contract to render a certain performance to a third party, the third party has the right to claim that performance directly from the obligor.
(2) The validity of the contract referred to in the preceding paragraph is not impaired even if a third party does not exist or a third party is not specified at the time of its formation.
(3) In the case referred to in paragraph (1), rights of the third party accrue when the third party has manifested intention of availing of the benefit of the contract under that paragraph to the obligor..


Article 567 (1) If the seller delivers the subject matter (limited to one that has been ascertained as the subject matter of the sale; hereinafter the same applies in this Article) to the buyer, and the subject matter is lost or damaged after the time of the delivery due to any grounds not attributable to either party, the buyer may not demand cure of the non-conformity of performance, demand a reduction of the price, claim compensation for loss or damage, or cancel the contract, on the ground of the loss or damage. In such a case, the buyer may not refuse to pay the price.
(2) The preceding paragraph also applies if the seller tenders the performance of the obligation of delivery by delivering the subject matter that conforms to the terms of the contract, but the buyer refuses to accept or is unable to accept the performance, and the subject matter is lost or damaged after the time of the tender of the performance due to any grounds not attributable to either party.


Article 717
(1) If a defect in the installation or preservation of a structure on land causes damage to another person, the possessor of that structure is liable to the person incurring damage to compensate for the damage;provided, however, that if the possessor has exercised the necessary care to prevent the damage, the owner must compensate for the damage.
(2) The provisions of the preceding paragraph apply mutatis mutandis if there is a defect in the planting or supporting of bamboo or trees.
(3) In the cases referred to in the preceding two paragraphs, if there is another person that is liable for the cause of the damage, the possessor or owner may exercise their right to reimbursement against that person..


Article 137
The obligor may not assert the benefit of time stipulation if:
(i) the obligor has become subject to the order commencing bankruptcy proceeding;
(ii) the obligor has lost, damaged, or diminished the security; or
(iii) the obligor fails to provide security when it has the obligation to do so..


Article 636
If the contractor delivers to the party ordering work of a content the subject matter of work that does not conform to the terms of the contract with respect to the kind or quality (in the case of the subject matter of work that is not required to be delivered, if the subject matter of work does not conform to the terms of the contract with respect to the kind or quality when the work is finished), the party ordering work may not demand cure of the non-conformity of performance, demand a reduction of the remuneration, claim compensation for loss or damage, or cancel the contract, on the grounds of the non-conformity caused by the nature of the materials that the party ordering work has provided or any instructions that the relevant party has given;provided, however, that this does not apply if the contractor knew that the materials or instructions were inappropriate but did not notify the ordering party of this..


Article 465-2
(1) A guarantor to a guarantee contract under which the principal obligation is one or more unidentified obligations within a certain specified scope (hereinafter referred to as a "contract for revolving guarantee") and the guarantor is not a corporation (hereinafter referred to as a "contract for revolving guarantee by an individual") is liable to perform the obligation in terms of the amounts of the principal of the principal obligation, any interest, penalty and compensation for loss or damage in connection with the principal obligation, and all the other charges secondary to the obligation, as well as the amount of any penalty or compensation for loss or damage which is agreed- upon on with regard to the guarantee obligation, up to a certain maximum amount which pertains to all of these amounts.
(2) A contract for revolving guarantee by an individual does not become effective unless it provides for the maximum amount prescribed in the preceding paragraph.
(3) The provisions of Article 446, paragraphs (2) and (3) apply mutatis mutandis to the provisions concerning a maximum amount prescribed in paragraph (1) in a contract for revolving guarantee by an individual..


Article 651
(1) A mandate may be cancelled by either party at any time.
(2) In the following cases, a party that has cancelled a mandate pursuant to the provisions of the preceding paragraph must compensate for damage suffered by the other party;provided, however, that this does not apply if there was a compelling reason for the cancellation:
(i) if the party cancels the mandate at a time that is detrimental to the other party; or
(ii) if the mandator cancels the mandate for which the purpose includes the interests for the mandatary (excluding the profit to be obtained exclusively by receiving remuneration)..


Article 562
(1) If the subject matter delivered to the buyer does not conform to the terms of the contract with respect to the kind, quality or quantity, the buyer may demand that the seller cure the non-conformity of performance by repairing the subject matter, delivering the substitute or delivering the replenishment;provided, however, that the seller may cure the non-conformity of performance by a method that is different from the method demanded by the buyer if it does not impose any undue burden on the buyer.
(2) If the non-conformity referred to in the preceding paragraph is due to grounds attributable to the buyer, the buyer may not demand that the seller cure the non-conformity of performance under the provisions of that paragraph..


Article 551
(1) The donor is presumed to have promised to deliver or transfer the thing or right that is the subject matter of the gift, while maintaining its condition as of the time when it is specified as the subject matter of the gift.
(2) With respect to gifts with burden, the donor provides the same warranty as that of a seller, to the extent of that burden..


Article 715
(1) A person that employs another person for a business undertaking is liable to compensate for damage inflicted on a third party by that person's employees with respect to the execution of that business;provided, however, that this does not apply if the employer exercised reasonable care in appointing the employee or in supervising the business, or if the damage could not have been avoided even if the employer had exercised reasonable care.
(2) A person that supervises a business on behalf of the employer also has the liability referred to in the preceding paragraph.
(3) The provisions of the preceding two paragraphs do not preclude the employer or supervisor from exercising their right to reimbursement against the employee..
