Problem: Generate a sentence that contains a fact.
Sentence: when a plant grows , the number of the leaves of that plant may increase

Problem: Generate a sentence that contains a fact.
Sentence: skin is used for protecting the body from harmful substances

Problem: Generate a sentence that contains a fact.
Sentence: a plant stem contains a system of tubes for transporting water and nutrients to other parts of the plant

Problem: Generate a sentence that contains a fact.
Sentence:
the sun is the source of energy for life on Earth