math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Larry had 59 lychee. Denise took 20 from him. Now 
sentence 2:  Larry has 39 lychee.
<equate> (59 - 20, 39)
Larry had 59 lychee. Denise took 20 from him. Now 
 Larry has 39 lychee.