1700
While cannibalism was thought to be nonexistent among wild lobster populations , it was observed in 2012 by researchers studying wild lobsters in Maine .
 location: Maine
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: Maine 
Answer:
 location: Maine