math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: William had some lime. Diane gave him 1 more. Now William has 27 lime. 
sentence 2:  William had 26 lime earlier.
<equate> (27 - 1, 26)
William had some lime. Diane gave him 1 more. Now William has 27 lime. 
 William had 26 lime earlier.