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It is one of his first attempts at applying his " phasing " technique , which he had previously used in the tape pieces " It 's Gonna Rain " ( 1965 ) and " Come Out " ( 1966 ) , to live performance .
 It 's Gonna Rain, Come Out
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:
 It 's Gonna Rain, Come Out