math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Claudine had some Beg. Nancy took 77 from him. Now Claudine has 91 Beg. 
sentence 2:  Claudine had 171 Begs in the beginning.
<equate> (91 + 77, 171)
Claudine had some Beg. Nancy took 77 from him. Now Claudine has 91 Beg. 
 Claudine had 171 Begs in the beginning.