CONCEPTS: boat, entrance, guide, ship, work

GEN: working tug boat guiding a large container ship through the narrow entrance of harbour

CONCEPTS: customer, product, supermarket

GEN: customers choosing dairy products in a supermarket .

CONCEPTS: hall, perform, piece

GEN: Musicians perform a musical piece at a theater hall.

CONCEPTS: bag, include, luggage

GEN:
Three bags are shown, including a blue piece of luggage and two purses.