math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Margaret had some Flower. Ronald gave him 6 more. Now Margaret has 12 Flower. 
sentence 2:  Margaret had 6 flowers in the beginning.
<equate> (12 - 6, 6)
Margaret had some Flower. Ronald gave him 6 more. Now Margaret has 12 Flower. 
 Margaret had 6 flowers in the beginning.