concepts: exercise gym machine pull weight
target: A boy goes to the gym to pull some weights and use other exercise machines.
references: A boy goes to the gym to pull some weights and use other exercise machines. When I exercise at the gym, I use a machine to pull a weight. The woman pulls weights from a machine to exercise at the gym. People exercise at the gym by pulling weights from machines. A woman exercises at the gym by pulling weights set into a machine. A man in a gym exercises his arms by pulling weights on a machine.