In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.

Sentence: The ice crystals that form on the ground are called frost. Question: What are the ice crystals that form on the ground called?
frost

Sentence: Stationary front weather phenomenon, which may bring clouds and precipitation, is created by stalled air masses. Question: What weather phenomenon, which may bring clouds and precipitation, is created by stalled air masses?
stationary front

Sentence: A grain of pollen can be described as a tiny male gametophyte enclosed in a tough capsule. Question: What can be described as a tiny male gametophyte enclosed in a tough capsule?
grain of pollen