Please choose the correct ending to complete the given sentence: Laying tile: The video is a tutorial about installing deck tiles. there

Ending1: 's a list of tiles on the screen. Ending2: 's a table in a kitchen, and a man shows how to remove a tile. Ending3: are small round large boulders on a roof. Ending4: 's a contractor working on a deck.

Answer format: ending1/ending2/ending3/ending4