CONCEPTS: boat, city, quay

GEN: quay with motor boats and a camp on island near city

CONCEPTS: move, track, yard

GEN: A train moving on the tracks in a train yard

CONCEPTS: cat, flower, meadow

GEN: cats in a flowering meadow

CONCEPTS: construct, dam, exert, force, resist

GEN:
concrete gravity dams are constructed such that their own weight resist the forces exerted upon it