<human>:  How many British soldiers were killed in the first day of the Battle of the Somme?
<bot>: The first day of the battle saw 20,000 British soldiers killed. The second day saw another 20,000 killed. The third day saw another 20,000 killed. The fourth day saw another 20,000 killed. The fifth day saw another 20,000 killed. The sixth day saw another 20,000 killed. The seventh day saw another 20,000 killed. The eighth day saw another 20,000 killed. The ninth day saw another 20,000 killed. The tenth day saw another 20,000 killed. The eleventh day saw another 20,000 killed. The twelfth day saw another 20,000 killed.