1760
In October 2018 , a video was posted to Westlife 's official social media platforms announcing the group 's reunion as a four-piece .
 organization: Westlife
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: Westlife 
Answer:
 organization: Westlife