math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Seth had some Chocolate. Andrew gave him 5 more. Now Seth has 31 Chocolate. 
sentence 2:  Seth had 26 Chocolate at first.
<equate> (31 - 5, 26)
Seth had some Chocolate. Andrew gave him 5 more. Now Seth has 31 Chocolate. 
 Seth had 26 Chocolate at first.