Definition: You are given a sentence and a question in the input. If the information provided in the sentence is enough to answer the question, label "Yes", otherwise label "No". Do not use any facts other than those provided in the sentence while labeling "Yes" or "No". There are only two types of valid responses: Yes and No.
Input: Sentence: They got to the dentist office and Jan told the woman, named Tiffany, at the front desk that they were there. 
Question: How many different people did they see at the dentist's office?

Yes.