math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Noreen had 194 blackcurrant. George took 174 from him. Now 
sentence 2:  Noreen has 20 blackcurrants.
<equate> (194 - 174, 20)
Noreen had 194 blackcurrant. George took 174 from him. Now 
 Noreen has 20 blackcurrants.