math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Rudy had some blackcurrant. Robert gave him 3 more. Now Rudy has 39 blackcurrant. 
sentence 2:  Rudy had 36 blackcurrants.
<equate> (39 - 3, 36)
Rudy had some blackcurrant. Robert gave him 3 more. Now Rudy has 39 blackcurrant. 
 Rudy had 36 blackcurrants.