math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: John had 198 kiwi. Alejandro took 153 from him. Now 
sentence 2:  John has 104 kiwi.
<equate> (198 - 153, 104)
John had 198 kiwi. Alejandro took 153 from him. Now 
 John has 104 kiwi.