math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Mabel had 123 blueberry. Steven took 79 from him. Now 
sentence 2:  Mabel has 44 blueberries.
<equate> (123 - 79, 44)
Mabel had 123 blueberry. Steven took 79 from him. Now 
 Mabel has 44 blueberries.