math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Lorna had 178 lime. Glenn took 171 from him. Now 
sentence 2:  Lorna has 7 limes.
<equate> (178 - 171, 7)
Lorna had 178 lime. Glenn took 171 from him. Now 
 Lorna has 7 limes.