context: Two female martial artists demonstrate a kick for an audience.
hypothesis: It is improbable that two female martial artists are teaching the audience how to kick for self-defense class.
valid_hypothesis: There is a better than even chance that two female martial artists are teaching the audience how to kick for self-defense class.
invalid_hypothesis: It is improbable that two female martial artists are teaching the audience how to kick for self-defense class.
hypothesis_assertion: Two female martial artists are teaching the audience how to kick for self-defense class.