math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: David had some Bread. Robert took 39 from him. Now David has 50 Bread. 
sentence 2:  David had 89 Bread primitively.
<equate> (50 + 39, 89)
David had some Bread. Robert took 39 from him. Now David has 50 Bread. 
 David had 89 Bread primitively.