Leo: Premise: "A crowd of people are standing in front of a building."
Hypothesis: "Protesters converge in front of the white house."
Do we know that the hypothesis entailed by the premise?
Mei: OK, So, let's think first...
Me:
Referring to a crowd in front of a building does not state the crowd are protesters and the building is the White House.
Thus, the answer is it is not possible to tell.