Concepts: cross, move, track, train
A: A train moving down the tracks to cross a railroad crossing.
Concepts: airport, landing, plane
A: rainbow over the airport as planes com in for landings .
Concepts: find, frog, salad
A: a vegetarian woman finds a frog in her salad .
Concepts: fish, tray, vegetable
A:
A tray of fish, with a side of vegetables.