math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Dana had 101 Watch. Estela gripped some Watch. Now Dana has 61  Watch. 
sentence 2:  Estela gripped 40 watches.
<equate> (101 - 61, 40)
Dana had 101 Watch. Estela gripped some Watch. Now Dana has 61  Watch. 
 Estela gripped 40 watches.