90034
In the mid-19 th century Thomas Mercer named it " Lake Union " in expectation of future canals linking it to Puget Sound and to Lake Washington .
 person: Thomas Mercer; location: Lake Union; location: Puget Sound; location: Lake Washington
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: Thomas Mercer, Lake Union, Puget Sound, Lake Washington 
Answer:
 person: Thomas Mercer; location: Lake Union; location: Puget Sound; location: Lake Washington