math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: William had 120 orange. Phyliss took 108 from him. Now 
sentence 2:  William has 9 oranges.
<equate> (120 - 108, 9)
William had 120 orange. Phyliss took 108 from him. Now 
 William has 9 oranges.