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Greenmoney is made up of ' Leo Greenslade ' one half of yOyO with Polydor record executive Seb Chew , a night based at The Notting Hill Arts Club and ' Alex Phountzi ' , formerly of the Bugzintheattic production outfit and another West London institution .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None