1The origin of the universe is still a topic of debate among scientists.
2What is the origin of the word 'quarantine'?
3The company's origin dates back to the early 20th century when it was founded by a group of entrepreneurs.
4If you want to understand the origin of a problem, you need to look at its history.
5The origin of the painting is unclear, but it is believed to have been created in the 18th century.