math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Rachel had some Book. Bruce took 45 from him. Now Rachel has 61 Book. 
sentence 2:  Rachel had 104 Books initially.
<equate> (61 + 45, 104)
Rachel had some Book. Bruce took 45 from him. Now Rachel has 61 Book. 
 Rachel had 104 Books initially.