math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Michael had some blackcurrant. Shirley took 11 from him. Now Michael has 70 blackcurrant. 
sentence 2:  Michael had 86 blackcurrants in the beginning.
<equate> (70 + 11, 86)
Michael had some blackcurrant. Shirley took 11 from him. Now Michael has 70 blackcurrant. 
 Michael had 86 blackcurrants in the beginning.