math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Donna had 115 lychee. Janet took 28 from him. Now 
sentence 2:  Donna has 89 lychees.
<equate> (115 - 28, 89)
Donna had 115 lychee. Janet took 28 from him. Now 
 Donna has 89 lychees.