math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Sally had 8 pennies and 7 nickels in her bank . Her dad gave her 9 nickels and her mother gave her 2 nickels . 
sentence 2:  Sally has 18 nickels.
<equate> (7 + 9 + 2, 18)
Sally had 8 pennies and 7 nickels in her bank . Her dad gave her 9 nickels and her mother gave her 2 nickels . 
 Sally has 18 nickels.