Complex sentence: The 10:23 Campaign is an awareness campaign & protest against the sale of homeopathy, organised by the Merseyside Skeptics Society, a non-profit organisation of skeptics, to oppose the sale of homeopathic products in the United Kingdom.
Split into simpler sentences: The 10:23 Campaign is an awareness campaign & protest against homeopathy. The campaign is organised by The Merseyside Skeptics Society, a non-profit organisation of skeptics in the United Kingdom.