math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: James had some coconut. Helen gave him 1 more. Now James has 22 coconut. 
sentence 2:  James had 21 coconuts.
<equate> (22 - 1, 21)
James had some coconut. Helen gave him 1 more. Now James has 22 coconut. 
 James had 21 coconuts.