Complex sentence: The Badminton Cabinet became the highest-priced piece of furniture in the world when it was auctioned for £8.58m million in 1990, and set the record again when it was auctioned again in December 2004, this time for £19 million.
Split into simpler sentences: The Badminton Cabinet became the highest-priced piece of furniture in the world when it was auctioned for £8.58m million in 1990. It again set the record when it was auctioned in December 2004, this time for £19 million.