Work surface which consists of wood boards that are on top of a couple of a-frame stands  shows that   working on a board.


Context: A worker is at the bottom of an outdoor flight of steps using power tools on a makeshift work surface which consists of wood boards that are on top of a couple of a-frame stands.
Hypothesis: A worker is working on a board.

Given this context, is the hypothesis true (Yes/No/I don't know)?