18041
The Tumbres eruption occurred around 7250 BCE , commencing with the eruption of pumice falls that reach thicknesses of less than .
 location: Tumbres
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: Tumbres 
Answer:
 location: Tumbres