math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Eva had 155 quince. Christina took 50 from him. Now 
sentence 2:  Eva has 104 quince.
<equate> (155 - 50, 104)
Eva had 155 quince. Christina took 50 from him. Now 
 Eva has 104 quince.