math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Sara had 21 quarters in her bank. Her dad gave her 49 more quarters. 
sentence 2:  Sara has 73 quarters now.
<equate> (21+49, 73)
Sara had 21 quarters in her bank. Her dad gave her 49 more quarters. 
 Sara has 73 quarters now.