math-nli: Output if sentence 2 Entails statement 1 or Contradicts statement 1 - 
sentence 1: A restaurant served 9 hot dogs during lunch and 2 during dinner today . It served 5 of them yesterday . 
sentence 2:  Eight hot dogs were served today.
<equate> (9 + 2, today.)
A restaurant served 9 hot dogs during lunch and 2 during dinner today . It served 5 of them yesterday . 
 Eight hot dogs were served today.