259440
Like other types of volunteering , environmental volunteers are motivated by a range of different factors , some of which are altruistic and others are for personal interest and development .
 None
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:  
Answer:
 None