math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Rayford had 19 Mango. Stacie furnished him some more. Now Rayford has 121 Mango. 
sentence 2:  Stacie furnished Rayford with 99 Mangoes.
<equate> (121 - 19, 99)
Rayford had 19 Mango. Stacie furnished him some more. Now Rayford has 121 Mango. 
 Stacie furnished Rayford with 99 Mangoes.