math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: Luke had 20 stickers. He bought 12 stickers from a store in the mall and got 20 stickers for his birthday. Then Luke gave 5 of the stickers to his sister and used 8 to decorate a greeting card. 
sentence 2:  Luke has 34 stickers left.
<equate> ((((20+12)+20)-5)-8, 34)
Luke had 20 stickers. He bought 12 stickers from a store in the mall and got 20 stickers for his birthday. Then Luke gave 5 of the stickers to his sister and used 8 to decorate a greeting card. 
 Luke has 34 stickers left.