math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Steven had some Car. Mikki took 18 from him. Now Steven has 21 Car. 
sentence 2:  Steven had 41 cars to begin with.
<equate> (21 + 18, 41)
Steven had some Car. Mikki took 18 from him. Now Steven has 21 Car. 
 Steven had 41 cars to begin with.