37315
Federal scientists estimate that between 16,000 and 21,000 US gallons ( 61 to 79 m ) of oil remains on beaches in Prince William Sound and up to 450 miles ( 725 " km ) away .
 location: Prince William Sound
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: Prince William Sound 
Answer:
 location: Prince William Sound