math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Stanley had 279 Beg. Susan grabbed some Beg. Now Stanley has 53  Beg. 
sentence 2:  Susan grabbed 226 Beg.
<equate> (279 - 53, 226)
Stanley had 279 Beg. Susan grabbed some Beg. Now Stanley has 53  Beg. 
 Susan grabbed 226 Beg.