math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Dana had 137 kiwi. Elizabeth took 25 from him. Now 
sentence 2:  Dana has 112 kiwi.
<equate> (137 - 25, 112)
Dana had 137 kiwi. Elizabeth took 25 from him. Now 
 Dana has 112 kiwi.