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Cornelis Vreeswijk and Fred Åkerström were particularly influential in their efforts to blend the heritage of the " visa " ( a specific way to render simple stanzaic poems or songs , given distinction by artists such as Carl Michael Bellman and Evert Taube ) with modern approaches to balladeering .
 person: Cornelis Vreeswijk; person: Fred Åkerström; person: Carl Michael Bellman; person: Evert Taube
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: Cornelis Vreeswijk, Fred Åkerström, Carl Michael Bellman, Evert Taube 
Answer:
 person: Cornelis Vreeswijk; person: Fred Åkerström; person: Carl Michael Bellman; person: Evert Taube