math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Alan had 119 Biscuit. Katherine grabbed some Biscuit. Now Alan has 78  Biscuit. 
sentence 2:  Katherine grabbed 45 Biscuit.
<equate> (119 - 78, 45)
Alan had 119 Biscuit. Katherine grabbed some Biscuit. Now Alan has 78  Biscuit. 
 Katherine grabbed 45 Biscuit.