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The other version , which is more popular , was directed by Gregory Dark , and has the band performing in the concrete channel of the Los Angeles River , while a teenage soap opera plays in the foreground .
 Gregory Dark, Los Angeles River
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Gregory Dark, Los Angeles River