math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Mary had 5 Beg. Megan proffered him some more. Now Mary has 148 Beg. 
sentence 2:  Megan proffered 147 Beg to Mary.
<equate> (148 - 5, 147)
Mary had 5 Beg. Megan proffered him some more. Now Mary has 148 Beg. 
 Megan proffered 147 Beg to Mary.