math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Lewis had 256 Watch. Dolores grabbed some Watch. Now Lewis has 18  Watch. 
sentence 2:  Dolores grabbed 238 Watch.
<equate> (256 - 18, 238)
Lewis had 256 Watch. Dolores grabbed some Watch. Now Lewis has 18  Watch. 
 Dolores grabbed 238 Watch.