math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Ken obtain 17 bags of Doll . 
sentence 2:  Each bag of Doll contains 2.5 Doll.
<equate> (42 / 17, 2.5)
Ken obtain 17 bags of Doll . 
 Each bag of Doll contains 2.5 Doll.