math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Susan had 119 Beg. Christina took 52 from him. Now 
sentence 2:  Susan has 68 Beg.
<equate> (119 - 52, 68)
Susan had 119 Beg. Christina took 52 from him. Now 
 Susan has 68 Beg.