math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Christine had 149 lychee. Jana lay hold of some lychee. Now Christine has 76  lychee. 
sentence 2:  Jana laid hold of 73 lychee.
<equate> (149 - 76, 73)
Christine had 149 lychee. Jana lay hold of some lychee. Now Christine has 76  lychee. 
 Jana laid hold of 73 lychee.