31481
" " Hero " " is a single performed by David Crosby from his third studio album " Thousand Roads " .
 person: David Crosby; media: Thousand Roads
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: David Crosby, Thousand Roads 
Answer:
 person: David Crosby; media: Thousand Roads