math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Christina had 48 plum. Wilmer took 15 from him. Now 
sentence 2:  Christina has 33 plums.
<equate> (48 - 15, 33)
Christina had 48 plum. Wilmer took 15 from him. Now 
 Christina has 33 plums.