math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Jason had 76 blackberry. Patricia took 23 from him. Now 
sentence 2:  Jason has 50 blackberries.
<equate> (76 - 23, 50)
Jason had 76 blackberry. Patricia took 23 from him. Now 
 Jason has 50 blackberries.