Student: Can we conclude from "The fedex driver listens to the workman in the green hard hat while the equipment to ship is being loaded." that "Fedex workmen all wear black hats."?\nOptions:\n- yes\n- no\n- it is not possible to tell.
Teacher: Let's think:

User
The FedEx driver cannot be wearing a green hat if all workmen wear black hats. So the final answer is no.
Assistant