math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Gilbert had some toy. Bessie gave him 5 more. Now Gilbert has 42 toy. 
sentence 2:  Gilbert had 37 toys initially.
<equate> (42 - 5, 37)
Gilbert had some toy. Bessie gave him 5 more. Now Gilbert has 42 toy. 
 Gilbert had 37 toys initially.