Problem: Generate a sentence that contains a fact.
Sentence: a light bulb requires electrical energy to produce light

Problem: Generate a sentence that contains a fact.
Sentence: calculating speed requires knowing distance travelled

Problem: Generate a sentence that contains a fact.
Sentence: camouflage is used for hiding by animals from predators

Problem: Generate a sentence that contains a fact.
Sentence:
condensation is a stage in the water cycle process