Problem: Generate a sentence that contains a fact.
Sentence: a tree growing a tree-growth ring occurs once per year

Problem: Generate a sentence that contains a fact.
Sentence: a force continually acting on an object in the same direction that the object is moving can cause that object 's speed to increase in a forward motion

Problem: Generate a sentence that contains a fact.
Sentence: January is during the winter in the northern hemisphere

Problem: Generate a sentence that contains a fact.
Sentence:
tidal energy can be used to produce electricity