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In February 1940 , he wrote his most famous song , " This Land Is Your Land " , as a response to what he felt was an overplaying of Irving Berlin 's " God Bless America " on the radio .
 media: This Land Is Your Land; person: Irving Berlin; media: God Bless America
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 media: This Land Is Your Land; person: Irving Berlin; media: God Bless America