5076
Shellmounds found on Middle Island and Bluff Island indicate that Native Americans did visit the Smith Island complex , but disease and war killed off most of the Native American population , so it is difficult to know much about the original inhabitants .
 location: Middle Island; location: Bluff Island; location: Smith Island
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Middle Island; location: Bluff Island; location: Smith Island