math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Leatha had 18 fig. Marquetta donateed him some more. Now Leatha has 41 fig. 
sentence 2:  Marquetta donated 21 figs to Leatha.
<equate> (41 - 18, 21)
Leatha had 18 fig. Marquetta donateed him some more. Now Leatha has 41 fig. 
 Marquetta donated 21 figs to Leatha.