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 had 25 boxes originally.
<equate> (31 - 6, 25)
Kelly had some Box. Jose gave him 6 more. Now Kelly has 31 Box. 
 Kelly had 25 boxes originally.