math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Grant had 123 pear. Jeffery lay hold of some pear. Now Grant has 33  pear. 
sentence 2:  Jeffery laid hold of 89 pears.
<equate> (123 - 33, 89)
Grant had 123 pear. Jeffery lay hold of some pear. Now Grant has 33  pear. 
 Jeffery laid hold of 89 pears.