math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Iva had some lychee. Lucy gave him 1 more. Now Iva has 50 lychee. 
sentence 2:  Iva had 49 lychee originally.
<equate> (50 - 1, 49)
Iva had some lychee. Lucy gave him 1 more. Now Iva has 50 lychee. 
 Iva had 49 lychee originally.