What was the question for this implicit rationale, and corresponding answer?
People can be doing other things than tying roller skates when they are at the rink.
The answer: it is not possible to tell
The question: Premise: "A small group of people are at a rollerskating rink."
Hypothesis: "A group of people are tying roller skates on at a rollerskating rink."
Do we know that the hypothesis entailed by the premise?