math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Teresa had some Pears. Jordan gave him 9 more. Now Teresa has 24 Pears. 
sentence 2:  Teresa had 18 Pears at first.
<equate> (24 - 9, 18)
Teresa had some Pears. Jordan gave him 9 more. Now Teresa has 24 Pears. 
 Teresa had 18 Pears at first.