context: A older man with gray hair wearing a gray suit next to a green and yellow taxi.
hypothesis: It is improbable that a taxi driver with gray hair next to a green and yellow taxi.
valid_hypothesis: It is improbable that a taxi driver with gray hair next to a green and yellow taxi.
invalid_hypothesis: It is certain that a taxi driver with gray hair next to a green and yellow taxi.
hypothesis_assertion: A taxi driver with gray hair next to a green and yellow taxi.