math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: John had 298 blackberry. Lia clutched some blackberry. Now John has 38  blackberry. 
sentence 2:  Lia clutched 260 blackberries.
<equate> (298 - 38, 260)
John had 298 blackberry. Lia clutched some blackberry. Now John has 38  blackberry. 
 Lia clutched 260 blackberries.