math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Joan had 18 banana. David proffered him some more. Now Joan has 188 banana. 
sentence 2:  David proffered 173 bananas to Joan.
<equate> (188 - 18, 173)
Joan had 18 banana. David proffered him some more. Now Joan has 188 banana. 
 David proffered 173 bananas to Joan.