math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Lance had 2 seashells. Joann granted him some more. Now Lance has 151 seashells. 
sentence 2:  Joann granted Lance 144 seashells.
<equate> (151 - 2, 144)
Lance had 2 seashells. Joann granted him some more. Now Lance has 151 seashells. 
 Joann granted Lance 144 seashells.