math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Ethel had 24 mango. Ana proffered him some more. Now Ethel has 109 mango. 
sentence 2:  Ana proffered 85 mango to Ethel.
<equate> (109 - 24, 85)
Ethel had 24 mango. Ana proffered him some more. Now Ethel has 109 mango. 
 Ana proffered 85 mango to Ethel.