math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Jean had 61 Watch. Victor took 57 from him. Now 
sentence 2:  Jean has 4 watches.
<equate> (61 - 57, 4)
Jean had 61 Watch. Victor took 57 from him. Now 
 Jean has 4 watches.