math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Helen had 17 blueberry. Dennis accorded him some more. Now Helen has 67 blueberry. 
sentence 2:  Dennis accorded Helen 50 blueberry.
<equate> (67 - 17, 50)
Helen had 17 blueberry. Dennis accorded him some more. Now Helen has 67 blueberry. 
 Dennis accorded Helen 50 blueberry.