math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Helen had 83 Watch. Kristie took 49 from him. Now 
sentence 2:  Helen has 33 watches.
<equate> (83 - 49, 33)
Helen had 83 Watch. Kristie took 49 from him. Now 
 Helen has 33 watches.