Concepts: build, model, office, stair
A: model of the stairs to be built for the arch behind the office
Concepts: cloud, lapse, mountain
A: time lapse of a panorama with mountains and clouds
Concepts: clock, pull, station, train
A: The train is pulled up to the station under the clock.
Concepts: book, browse, visitor
A:
visitors browse books at a stall on friday .