context: A roofer in a gray sweatshirt and orange hat walks on a unfinished roof at a lake-side home.
hypothesis: There is a very good chance that the roofer is putting on shingles.
valid_hypothesis: There is a very good chance that the roofer is putting on shingles.
invalid_hypothesis: It is unlikely that the roofer is putting on shingles.
hypothesis_assertion: The roofer is putting on shingles.