math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Kelly had some Box. Jose gave him 6 more. Now Kelly has 31 Box. 
sentence 2:  Kelly originally had 23 boxes.
<equate> (31 - 6, 23)
Kelly had some Box. Jose gave him 6 more. Now Kelly has 31 Box. 
 Kelly originally had 23 boxes.