math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Charles had some raspberry. Gloria gave him 2 more. Now Charles has 17 raspberry. 
sentence 2:  Charles had 12 raspberry to begin with.
<equate> (17 - 2, 12)
Charles had some raspberry. Gloria gave him 2 more. Now Charles has 17 raspberry. 
 Charles had 12 raspberry to begin with.