13905
The cluster contains a large number of rare , evolved , high-mass stars , including : 6 yellow hypergiants , 4 red supergiants including Westerlund 1 - 26 , one of the largest known stars , 24 Wolf-Rayet stars , a luminous blue variable , many OB supergiants , and an unusual supergiant sgB [ e ] star which has been proposed to be the remnant of a recent stellar merger .
 location: Westerlund 1 - 26; location: Wolf-Rayet
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Westerlund 1 - 26, Wolf-Rayet 
Answer:
 location: Westerlund 1 - 26; location: Wolf-Rayet