math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Frederick had some raspberry. Richard gave him 7 more. Now Frederick has 10 raspberry. 
sentence 2:  Frederick initially had 2 raspberries.
<equate> (10 - 7, 2)
Frederick had some raspberry. Richard gave him 7 more. Now Frederick has 10 raspberry. 
 Frederick initially had 2 raspberries.