math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Katherine had 157 Mango. George get hold of some Mango. Now Katherine has 10  Mango. 
sentence 2:  George got 146 Mangoes.
<equate> (157 - 10, 146)
Katherine had 157 Mango. George get hold of some Mango. Now Katherine has 10  Mango. 
 George got 146 Mangoes.