math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Gerald had 83 quince. Luis took 11 from him. Now 
sentence 2:  Gerald has 68 quince.
<equate> (83 - 11, 68)
Gerald had 83 quince. Luis took 11 from him. Now 
 Gerald has 68 quince.