math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: James had 120 Bread. Jon took 20 from him. Now 
sentence 2:  James has 97 bread.
<equate> (120 - 20, 97)
James had 120 Bread. Jon took 20 from him. Now 
 James has 97 bread.