math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Karl had 40 Biscuit. Karen took 24 from him. Now 
sentence 2:  Karl has 16 biscuits.
<equate> (40 - 24, 16)
Karl had 40 Biscuit. Karen took 24 from him. Now 
 Karl has 16 biscuits.