math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Glenda had 260 blackberry. Harry clutched some blackberry. Now Glenda has 12  blackberry. 
sentence 2:  Harry clutched 250 blackberries.
<equate> (260 - 12, 250)
Glenda had 260 blackberry. Harry clutched some blackberry. Now Glenda has 12  blackberry. 
 Harry clutched 250 blackberries.