math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Kenneth had 209 Beg. Ronald gripped some Beg. Now Kenneth has 7  Beg. 
sentence 2:  Ronald gripped 202 Beg.
<equate> (209 - 7, 202)
Kenneth had 209 Beg. Ronald gripped some Beg. Now Kenneth has 7  Beg. 
 Ronald gripped 202 Beg.