context: A smiling man with gray hair and glasses, dressed in black, is sitting in a chair with a music stand in front of him.
hypothesis: It is improbable that this man has an eyesight deficiency.
valid_hypothesis: It is highly likely that this man has an eyesight deficiency.
invalid_hypothesis: It is improbable that this man has an eyesight deficiency.
hypothesis_assertion: This man has an eyesight deficiency.