math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: William had some lychee. Carla gave him 7 more. Now William has 36 lychee. 
sentence 2:  William initially had 29 lychee.
<equate> (36 - 7, 29)
William had some lychee. Carla gave him 7 more. Now William has 36 lychee. 
 William initially had 29 lychee.