premise: Many people standing outside of a place talking to each other in front of a building that has a sign that says 'HI-POINTE.'. hypothesis: The people are sitting in the hotel lobby.
contradiction: People cannot be standing outside if they are sitting in a hotel lobby.|contradiction: People can't be standing and sitting at the same time.  People cannot be outside and inside at the same time.|contradiction: You cannot be outside a building and inside its lobby at the same time.