math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Alex had 244 Beg. Barbara grabbed some Beg. Now Alex has 48  Beg. 
sentence 2:  Barbara grabbed 196 Beg.
<equate> (244 - 48, 196)
Alex had 244 Beg. Barbara grabbed some Beg. Now Alex has 48  Beg. 
 Barbara grabbed 196 Beg.