answer: Susan tells #Person1# that she had a science class so she missed #Person2# at lunch.
documents: #Person1#: Hi, Susan, Where were you at lunch time?
  #Person2#: Oh, sorry to miss you. But my thirst for knowledge was greater than my stomach for food.
  #Person1#: I never have that problem. So where were you?
  #Person2#: My science class ran over.