177733
The impact factor for Bulletin of Volcanology in 2011 is 2.205 .
 organization: Volcanology
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: Volcanology 
Answer:
 organization: Volcanology