math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Clara had some lychee. Valerie gave him 6 more. Now Clara has 25 lychee. 
sentence 2:  Clara had 19 lychee initially.
<equate> (25 - 6, 19)
Clara had some lychee. Valerie gave him 6 more. Now Clara has 25 lychee. 
 Clara had 19 lychee initially.