math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Elizabeth had 188 lemon. Sharron took 178 from him. Now 
sentence 2:  Elizabeth has 10 lemons.
<equate> (188 - 178, 10)
Elizabeth had 188 lemon. Sharron took 178 from him. Now 
 Elizabeth has 10 lemons.