math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Gerald had 11 Watch. Sheryl giveed him some more. Now Gerald has 170 Watch. 
sentence 2:  Sheryl gave Gerald 159 Watch.
<equate> (170 - 11, 159)
Gerald had 11 Watch. Sheryl giveed him some more. Now Gerald has 170 Watch. 
 Sheryl gave Gerald 159 Watch.