A man in a red shirt is standing next to a woman in a blue dress. They are both holding hands and smiling at each other. A person is walking down the street, and a stranger approaches them and starts talking. Can we conclude that the person is happy? A man in a white outfit is washing a tiled surface. The sentence 'the man in a white outfit is washing the tile' is true. Premise: A person is wearing a red shirt. Hypothesis: The person is wearing a red shirt. Can we conclude the hypothesis? If Nobody knew whether there was life on Mars because, oddly enough, nobody had looked until now., can we conclude that 'If was unknown as whether their was life on Mars or not.'?
yes
it is not possible to tell
yes
yes
yes