Instruct: Given a statement, retrieve legal articles that support it
Query: 
In the case where (A) loses his/her capacity to act after the dispatch of the notice of an offer of a contract to (B), who is a person at a distance, even if (B) knows such fact, the offer of the contract shall become effective.


Article 526
If an offeror dies, comes to be in a constant state wherein the offeror lacks mental capacity, or becomes subject to restrictions on legal capacity to act after issuing notice of the offer, and the offeror has manifested the intention not to make the offer effective should any of these facts occur, or the other party comes to know that any of these facts has occurred before issuing a notice of acceptance, that offer is not effective..


Article 555
A sale becomes effective when one of the parties promises to transfer certain property rights to the other party and the other party promises to pay the price for this..


Article 523
(1) An offer which specifies a period for acceptance may not be revoked;provided, however, that this does not apply if the offeror reserves the right to revoke.
(2) If an offeror does not receive notice of acceptance of the offer referred to in the preceding paragraph within the period referred to in that paragraph, the offer ceases to be effective..


Article 479
Except as provided in the preceding Article, any performance made to a person other than the person with right to performance is effective only to the extent that the obligee is enriched as a result thereof.
Article 478
Performance made to a person that does not constitute a person authorized to accept the performance (meaning the obligee or a third party authorized to accept performance based on the provisions of laws and regulations or the manifestation of intention of the parties; the same applies hereinafter) but that appears to be the person authorized to accept the performance in light of common sense in the transaction is effective only if the person effecting performance was acting in good faith and without negligence..


Article 525
(1) An offer made without specifying a period for acceptance may not be revoked until the passage of a reasonable period of time for the offeror to receive a notice of acceptance;provided, however, that this does not apply if the offeror reserves the right to revoke.
(2) Notwithstanding the provisions of the preceding paragraph, an offer referred to in that paragraph which has been made to a person with whom the offeror is having a dialogue may be revoked at any time while the dialogue continues.
(3) If an offeror does not receive from a person with whom the offeror is having a dialogue a notice of acceptance of the offer referred to in paragraph (1) while the dialogue continues, the offer ceases to be effective;provided, however, that this does not apply if the offeror manifests the intention to maintain the effect of the offer after the end of the dialogue..


Article 513
If the parties conclude a contract which gives rise to a new obligation that falls under any of the following as a replacement of the previous obligation, the previous obligation is extinguished by novation:
(i) an obligation that makes a material change to the content of the performance of the previous obligation;
(ii) an obligation for which the previous obligor is substituted by a third party; or
(iii) an obligation for which the previous obligee is substituted by a third party..


Article 484
(1) Unless a particular intention is manifested with respect to the place where the performance should take place, the delivery of a specific thing must be effected at the place where that thing was located when the relevant claim accrued, and the discharge of any other obligation must be effected at the current domicile of the obligee.
(2) If the trading hours are specified by laws and regulations or customs, performance may be made or demanded only within the trading hours..


Article 120 (1) An act that is voidable on the grounds of the qualified legal capacity to act of the person who did the act may be rescinded only by the person with qualified legal capacity (in the case of an act performed by the person as a legal representative of another person with limited capacity, including that other person with limited capacity), or an agent or successor thereof, or a person who has the authority to give consent thereto.
(2) An act that is voidable on the grounds of a mistake, fraud or duress may be rescinded only by the person who made the defective manifestation of intention, or an agent or successor thereof.


Article 422-2 If the obligor acquires a right or profit as a substitute for the subject matter of the obligation due to the same cause as the one that has rendered the performance of the obligation impossible, the obligee may demand the transfer of the right or reimbursement of the profit from the obligor, to the extent of the amount of damage sustained thereby.


Article 115
A counterparty may rescind a contract that a person without the authority to represent has concluded until the principal ratifies it;provided, however, that this does not apply if the counterparty knew at the time of the conclusion of the contract that the agent had no authority to represent..


Article 521
(1) Unless otherwise provided for in laws and regulations, any person may freely decide whether or not to conclude a contract.
(2) Parties to a contract may freely decide the terms of the contract, subject to the restrictions prescribed by laws and regulations..


Article 424-5 If the obligee is entitled to make demand rescission for fraudulent act against the beneficiary, and a person subsequently acquires the property which has been transferred to the beneficiary, the obligee may also make demand for rescission of fraudulent act against the subsequent acquirer only in the situations specified in the following items according to the categories set forth in the respective items:
(i) if the subsequent acquirer acquires the property from the beneficiary: the subsequent acquirer, at the time of the acquisition, knows that the obligor's act will be prejudicial to the obligee; or
(ii) if the subsequent acquirer acquires the property from another subsequent acquirer: the relevant subsequent acquirer and all the subsequent acquirers that previously acquired the property, at the time of their respective acquisitions, know that the obligor's act will be prejudicial to the obligee.
Article 424 (1) An obligee may demand the court to rescind an act which the obligor commits knowing that it will prejudice the obligee; provided, however, that this does not apply if a person that benefits from that act (hereinafter referred to as the "beneficiary" in this Subsection) does not know, at the time of the act, that the obligee will be prejudiced.


Article 20
(1) After a person with qualified legal capacity who is involved in dealings with another party becomes a person with the legal capacity to act (meaning a person whose legal capacity to act is not subject to restrictions; the same applies hereinafter), the other party to those dealings may fix a period of one month or longer and demand that the person give a definite answer within that period of time as to whether the person will ratify an act that the person may rescind. In such a case, if the person fails to send a definite answer within that period of time, the person is deemed to have ratified that act.
(2) The second sentence of the preceding paragraph also applies if, before the person with qualified legal capacity becomes a person with the legal capacity to act, the other party to dealings involving the person with qualified legal capacity lodges the demand prescribed in the preceding paragraph with the legal representative, curator, or assistant of that person with respect to an act within the scope of their authority, and they fail to send a definite answer within the fixed period of time referred to in that paragraph.
(3) If a person does not send notice within the period of time set forth in the preceding two paragraphs indicating that the person has completed any special formalities that an act requires, the person is deemed to have rescinded that act.
(4) The other party to dealings involving a person with qualified legal capacity may lodge a demand with a person under curatorship or with a person under assistance who is subject to a decision as referred to in Article 17, paragraph (1) to demand that the person get the curator or assistant to ratify an act within the fixed period referred to in paragraph (1). In such a case, if the person under curatorship or person under assistance does not send notice within that period indicating that the person has gotten the curator or assistant to ratify the act in question, the person is deemed to have rescinded that act..


Article 705
A person that has paid money or delivered anything as performance of an obligation may not demand the return of the money paid or thing delivered if the person knew, at the time, that the obligation did not exist..


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 620
If a lease is cancelled, the cancellation becomes effective solely toward the future. In such a case, the cancellation does not preclude a claim for compensation for loss or damage.
Article 684
The provisions of Article 620
apply mutatis mutandis to partnership contracts..


Article 484
(1) Unless a particular intention is manifested with respect to the place where the performance should take place, the delivery of a specific thing must be effected at the place where that thing was located when the relevant claim accrued, and the discharge of any other obligation must be effected at the current domicile of the obligee.
(2) If the trading hours are specified by laws and regulations or customs, performance may be made or demanded only within the trading hours..


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 20
(1) After a person with qualified legal capacity who is involved in dealings with another party becomes a person with the legal capacity to act (meaning a person whose legal capacity to act is not subject to restrictions; the same applies hereinafter), the other party to those dealings may fix a period of one month or longer and demand that the person give a definite answer within that period of time as to whether the person will ratify an act that the person may rescind. In such a case, if the person fails to send a definite answer within that period of time, the person is deemed to have ratified that act.
(2) The second sentence of the preceding paragraph also applies if, before the person with qualified legal capacity becomes a person with the legal capacity to act, the other party to dealings involving the person with qualified legal capacity lodges the demand prescribed in the preceding paragraph with the legal representative, curator, or assistant of that person with respect to an act within the scope of their authority, and they fail to send a definite answer within the fixed period of time referred to in that paragraph.
(3) If a person does not send notice within the period of time set forth in the preceding two paragraphs indicating that the person has completed any special formalities that an act requires, the person is deemed to have rescinded that act.
(4) The other party to dealings involving a person with qualified legal capacity may lodge a demand with a person under curatorship or with a person under assistance who is subject to a decision as referred to in Article 17, paragraph (1) to demand that the person get the curator or assistant to ratify an act within the fixed period referred to in paragraph (1). In such a case, if the person under curatorship or person under assistance does not send notice within that period indicating that the person has gotten the curator or assistant to ratify the act in question, the person is deemed to have rescinded that act..


Article 521
(1) Unless otherwise provided for in laws and regulations, any person may freely decide whether or not to conclude a contract.
(2) Parties to a contract may freely decide the terms of the contract, subject to the restrictions prescribed by laws and regulations..


Article 429
Even if there is a novation or release between one of the obligees of an indivisible claim and the obligor, other obligees may request the obligor to perform the obligation in whole. In such a case, the benefit which should have been allocated to that one obligee if that obligee did not lose the relevant right must be reimbursed to the obligor..


Article 549
Gifts become effective by the manifestation of intention by one of the parties to give a certain property to the other party gratuitously, and the acceptance of the other party thereof..


Article 705
A person that has paid money or delivered anything as performance of an obligation may not demand the return of the money paid or thing delivered if the person knew, at the time, that the obligation did not exist..


Article 499
A person that has performed the obligation for the benefit of the obligor is subrogated to the claim of the obligee.
Article 500
The provisions of Article 467
apply mutatis mutandis in the case referred to in the preceding Article (unless a person with a legitimate interest in making performance is subrogated to the claim of the obligee)..


Article 301
An obligor may demand that a right of retention be terminated by providing a reasonable security.
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..
