math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Sean has 9 apples. Susan gives Sean 8 more. Later, Sean buys 18 tickets at the store. 
sentence 2:  Sean has 18 apples.
<equate> ((9.0+8.0), 18)
Sean has 9 apples. Susan gives Sean 8 more. Later, Sean buys 18 tickets at the store. 
 Sean has 18 apples.