math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Anita had some Book. Jean gave him 6 more. Now Anita has 28 Book. 
sentence 2:  Anita had 22 books initially.
<equate> (28 - 6, 22)
Anita had some Book. Jean gave him 6 more. Now Anita has 28 Book. 
 Anita had 22 books initially.