Sentence:  What exactly is an <WSD>art union</WSD> I hear you ask? Well it is simply an official term used by regulation boards such as the Queensland Office of Gaming Regulation that describes a lottery where the total value of the prizes exceeds $20,000 and the game is operated by a non profit organisation. 
Meaning of the word marked with <WSD> tags:  A raffle run to raise money for a charity.