Problem: Generate a sentence that contains a fact.
Sentence: An example of playing a musical instrument is hitting the keys of a piano

Problem: Generate a sentence that contains a fact.
Sentence: pluto has not cleared its orbit

Problem: Generate a sentence that contains a fact.
Sentence: An example of an instinct is the kangaroo 's ability to crawl into its mother 's pouch to drink milk

Problem: Generate a sentence that contains a fact.
Sentence:
a beach ball contains gas