You need to answer a given question containing a blank (_). Your answer must be one of the two objects mentioned in the question, for example "trophy" and "suitcase". Your answer must not contain a word that is not present in the question. Please don't use articles (e.g., the, a) before the answer.

The canvas with oil paint on it was left out longer than the one with acrylic paint as the _ took shorter to dry.
acrylic

The cold air inundated the shack but the house remained warm, as the _ 's windows remained closed .
house

Jim used a variety of shovels to dig the hole, but decided not to use the digging iron, so the _ stayed shiny.

digging iron