math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Grace had 66 strawberry. June took 49 from him. Now 
sentence 2:  Grace has 17 strawberries.
<equate> (66 - 49, 17)
Grace had 66 strawberry. June took 49 from him. Now 
 Grace has 17 strawberries.