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.

Knot and knight both have silent K's making them hard to spell without context. The _ is a longer word so it is harder.
knight

I prefer to have my photos printed on metal compared to canvas because the _ prints are contemporary.
metal

We could not detect any radiation, but found plenty of heat, as the _  was strong in that area.

heat