They try to describe "yral wood", which is needed for the construction. When the yard clerk is unable to help them, Jeff tries to help by noting that it is also known as "dragon wood" as its properties help put dragons to sleep. Feeling hat his time is being wasted, the clerk starts to leave when Roger suggests that they could perhaps use plywood instead. When Roger admits that he doesn't know how plywood is grown, he manages to amuse the clerk who allows them to rummage through his scrap bin for wood.