Nothing in sentence 1 says anything about where the girls are going, only that they are crossing a street. We don't know if they are heading to school, or where they are going.


Context: "A group of uniformed schoolgirls crosses a street in a residential neighborhood, with a fancy balcony and a less prominent balcony on the left, much less ornate structures on the right, and a beautiful yellow church with two towers in the background against a blue sky with thin clouds."
Hypothesis: Kids are heading to school.
Based on the context, is the hypothesis true, false, or unknown?