math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Ruth had 182 blackberry. Elizabeth gripped some blackberry. Now Ruth has 25  blackberry. 
sentence 2:  Elizabeth gripped 157 blackberries.
<equate> (182 - 25, 157)
Ruth had 182 blackberry. Elizabeth gripped some blackberry. Now Ruth has 25  blackberry. 
 Elizabeth gripped 157 blackberries.