math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Albert had some Flower. Angel gave him 2 more. Now Albert has 22 Flower. 
sentence 2:  Albert had 20 flowers to begin with.
<equate> (22 - 2, 20)
Albert had some Flower. Angel gave him 2 more. Now Albert has 22 Flower. 
 Albert had 20 flowers to begin with.