7803
Its roots went earlier , and performers like Burl Ives , Woody Guthrie , Lead Belly , and Oscar Brand had enjoyed a limited general popularity in the 1930 s and 1940 s .
 person: Burl Ives; person: Woody Guthrie; person: Lead Belly; person: Oscar Brand
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Burl Ives; person: Woody Guthrie; person: Lead Belly; person: Oscar Brand