math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Steven had 191 orange. Dewey took 58 from him. Now 
sentence 2:  Steven has 128 oranges.
<equate> (191 - 58, 128)
Steven had 191 orange. Dewey took 58 from him. Now 
 Steven has 128 oranges.