user: You are a structured reasoning expert tasked with solving problems step by step. 
You first think about the reasoning process in the mind and then provide the answer. The reasoning process and answer should be enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think> reasoning process here </think> <answer> answer here </answer>. 
Given a question and the associated knowledge graph triplets (entity, relation, entity), you are asked to answer the question with these triplets and your own knowledge. 
You can break down the original question into several sub-questions and explore the given knowledge graph to solve them step-by-step. If there are multiple possible answers, choose one as the final answer. 
After thinking, when you finally reach a conclusion, clearly state the answer within <answer> </answer> tags, i.e., <answer> answer here </answer>. 
Question: What county has the position title Mayor of Morristown, Tennessee located in? 
Knowledge Triplets: Morristown, location.location.containedby, Morris County
Morristown Municipal Airport, location.location.containedby, Morris County
Morris County, location.location.contains, 07866
Morris County, location.location.contains, Pleasant Grove
Morris County, location.location.contains, US Census 2000 Tract 34027046000
Milltown, location.location.containedby, Morris County
Morris County, location.location.contains, US Census 2000 Tract 34027044102
Morris County, location.location.contains, US Census 2000 Tract 34027041602
Morris County, location.location.contains, 07045-9165
Morris County, location.location.people_born_here, Peter Fleming
Morris County, location.location.contains, US Census 2000 Tract 34027041803
Morris County, location.location.contains, US Census 2000 Tract 34027041603
Morris County, location.location.contains, Morris Plains Station
Morris County, location.location.contains, 07444
Morris County, location.location.contains, Morristown Municipal Airport
Morris County, location.statistical_region.population, m.066gvsl
Morris County, location.location.contains, Bartley
Morris County, location.location.contains, US Census 2000 Tract 34027042000
Morris County, location.location.contains, Mendham
Morris County, location.location.contains, Brady Park
Morris County, location.location.contains, US Census 2000 Tract 34027045602
Morris County, location.location.contains, US Census 2000 Tract 34027041801
Morris County, location.location.contains, Taylortown
Morris County, location.location.contains, US Census 2000 Tract 34027040804
Morris County, location.location.contains, Naughright
Morris County, location.location.contains, Lincoln Park
Morris County, location.location.contains, Long Valley
Morris County, location.location.contains, US Census 2000 Tract 34027046106
Morris County, location.location.contains, Gillette
Morris County, location.location.contains, Loantaka Estates
Morris County, location.location.contains, Madison
Morris County, location.location.contains, US Census 2000 Tract 34027041200
Morris County / County Place 3402799999, location.location.containedby, Morris County
Morris County, location.location.contains, US Census 2000 Tract 34027041500
Morris County, location.location.contains, Rockaway
Morris County, location.statistical_region.population, g.11x1hm4cr
Morris County, location.statistical_region.population, m.066gvs0
Morris County, location.us_county.hud_county_place, Kenvil
Morris County, location.location.contains, US Census 2000 Tract 34027046104
Morris County, location.location.contains, Crestmoore
Morris County, location.location.people_born_here, Edward Faitoute Condict Young
Morris County, location.location.contains, Cedar Lake
Morris County, location.location.contains, US Census 2000 Tract 34027043900
Morris County, location.location.contains, 07828
Morris County, location.location.contains, 07980
Morris County, location.us_county.hud_county_place, Florham Park
Morris County, location.statistical_region.population, m.066gvt4
Morris County, location.statistical_region.population, g.11x1fhfh8
Morris County, location.location.contains, Washington Corner
Morris County, location.location.contains, US Census 2000 Tract 34027045000
Morristown National Historical Park, location.location.containedby, Morris County
Morris County, location.location.contains, 07930
Morris County, location.statistical_region.population, g.11x1cr730
Morris County, location.location.contains, US Census 2000 Tract 34027044101
Morris County, location.location.contains, Towaco
Morris County, location.location.contains, Brookside
Morris County, location.administrative_division.capital, m.0jvw23l
Morris County, location.location.contains, Tabor
Morris County, location.location.contains, US Census 2000 Tract 34027044300
Morris County, location.us_county.hud_county_place, White Meadow Lake
Morris County, location.location.contains, US Census 2000 Tract 34027044401
m.0102jsqh, government.government_position_held.jurisdiction_of_office, Morristown
Morris County, location.location.contains, Boonton Township
Morris County, location.location.contains, Green Pond Junction
Morris County, location.location.contains, Birch Hills
Morris County, location.location.contains, Springtown
Morris County, location.location.contains, Meriden
Morris County, location.location.contains, Hanover Neck
Morris County, location.location.contains, Washington Valley
Morris County, location.location.contains, US Census 2000 Tract 34027040702
Morris County, location.statistical_region.population, g.12b01q471
Morris County, location.location.contains, 07836
Morris County, location.location.contains, 07950
Morris County, location.location.contains, Middle Valley
Morris County, location.location.contains, Morris County / County Place 3402799999
Morris County, location.statistical_region.rent50_1, m.05gdwdh
Morris County, location.location.contains, US Census 2000 Tract 34027043800
Morris County, location.location.contains, US Census 2000 Tract 34027041902
Morris County, location.location.contains, 07457
Morris County, location.us_county.hud_county_place, Mount Arlington
Morris County, location.location.contains, 07932
Morris County, location.location.contains, US Census 2000 Tract 34027046103
Morris County, location.location.contains, Carey
Morris County, location.location.contains, 07936
Morris County, location.location.contains, 07852
Morris County, location.location.contains, Youngstown
Morris County, location.location.contains, US Census 2000 Tract 34027040101
Morris County, location.statistical_region.population, m.066gvtq
Morris County, location.us_county.hud_county_place, Chatham
Morris County, location.location.contains, US Census 2000 Tract 34027046297
Morris County, location.location.contains, New Vernon
Morris County, location.location.contains, Randolph
Morris County, location.us_county.hud_county_place, Lincoln Park
Morris County, location.statistical_region.population, m.066gvv8
Morris County, location.location.contains, 07046
Morris County, location.location.contains, Woodstock
Morris County / County Place 342448, location.location.containedby, Morris County
Morris County, location.location.contains, Shore Hills
Morris County, location.location.contains, 07933
Morris County, location.location.contains, Glen Alpin
Morris County, location.location.contains, US Census 2000 Tract 34027044800
Morris County, location.location.contains, Smoke Rise
Morris County, location.location.contains, Tierneys Corner
Morris County, location.location.contains, US Census 2000 Tract 34027045200
Morris County, location.location.contains, Malapardis
Morris County, location.us_county.hud_county_place, Madison
Morris County, location.location.contains, Riverdale
Morris County, location.location.contains, Hurdtown
Morris County, location.us_county.hud_county_place, Chester
Morris County, location.location.contains, Chester Township
Morris County, location.location.contains, Chatham
Morris County, location.location.contains, 07940
Morris County, location.location.contains, US Census 2000 Tract 34027041703
Morris County, location.location.contains, US Census 2000 Tract 34027046201
Hilltown, location.location.containedby, Morris County
Morris County, location.us_county.hud_county_place, Morris Plains
Morris County, location.location.contains, Lebanon Township
Morris County, location.statistical_region.population, g.11x1klm60
Morris County, location.location.contains, US Census 2000 Tract 34027043303
Morris County, location.location.contains, Parker
Morris County, location.location.contains, Kitchell
Morris County, location.location.contains, Convent Station
Morris County, location.location.contains, Chester
Morris County, location.location.contains, 07885
Morris County, location.location.contains, US Census 2000 Tract 34027044501
Morris County, location.location.contains, US Census 2000 Tract 34027044502
Morris County, location.location.contains, US Census 2000 Tract 34027044200
Morris County, location.location.contains, Franklin
Morris County, location.location.contains, US Census 2000 Tract 34027046202
Morris County, location.statistical_region.population, m.066gvrn
Morris County, location.location.contains, Morris Township
Morris County, location.location.contains, 07850
Morris County, location.location.contains, US Census 2000 Tract 34027046105
Morris Township, location.location.containedby, Morris County
Morris County, location.location.contains, US Census 2000 Tract 34027040900
Morris County, location.statistical_region.population, g.12b01q470
Morris County, location.location.contains, US Census 2000 Tract 34027045902
Morris County, location.location.contains, US Census 2000 Tract 34027041601
Morris County, location.location.contains, Joseph W. Revere House
Morris County, location.location.contains, Lake Telemark
Morris County, location.location.adjoin_s, m.03jtbcc
Morris County, location.location.contains, US Census 2000 Tract 34027045402
Morris County, location.location.contains, Florham Park
Morris County, location.statistical_region.population, m.066gvtj
Morris County, location.location.contains, Green Village
Morris County, location.location.contains, Rockaway Valley
Morris County, location.location.contains, US Census 2000 Tract 34027045901
Morris County, location.statistical_region.rent50_0, m.05gdwd8
Morris County / County Place 342448, location.hud_county_place.county, Morris County
Morris County, location.location.contains, 07869
Morris County, location.administrative_division.fips_10_4_region_code, US34027
Morris County, location.location.contains, Middletown
Morris County, location.location.contains, US Census 2000 Tract 34027045502
Morris County, location.location.contains, Fairwoods
Morris County, location.location.contains, 07876
Morris County, location.location.contains, Mendham Township
Morris County, location.location.contains, 07962
Morris County, location.location.contains, 07849
Morris County, location.statistical_region.rent50_2, m.05gdwdq
Morris County, location.location.contains, 07928
Morris County, location.location.contains, US Census 2000 Tract 34027044900
Morris County, location.location.contains, 07082
Morris County, location.location.contains, Union Hill
Morris County, location.location.contains, 07962-1975
Morris County, location.location.contains, US Census 2000 Tract 34027040200
Morris County, location.location.contains, Knollwood
Morris County, location.statistical_region.population, m.066gvsd
Morris County, location.location.contains, US Census 2000 Tract 34027046298
Morris County, location.location.contains, 07960-3632
Morris County, location.location.contains, Butler
Morris County, location.location.contains, Milltown
Morris County, location.us_county.hud_county_place, Mendham
Morris County, location.statistical_region.hud_id, 3402799999
Morris County, location.location.contains, Homestead Park
Morris County, location.statistical_region.population, g.11b66fk02t
Morris County, location.location.contains, Crestview
Morris County, location.location.contains, Morris County / County Place 342448
Morris County, location.location.contains, Cobbs Corner
Mayor of Morristown, common.topic.notable_for, g.1q3sgywtw
Morris County, location.location.contains, US Census 2000 Tract 34027045501
Morris County, location.location.contains, US Census 2000 Tract 34027040701
Morris County, location.location.contains, g.1223ws0_
Morris County, location.location.contains, Washington Township
Morris County, location.location.contains, US Census 2000 Tract 34027043500
Morris County, location.location.contains, US Census 2000 Tract 34027041300
Morris County, location.location.contains, 07045
Morris County, location.location.contains, Green Pond
Morris County, location.location.adjoin_s, m.03jsztp
Morris County, location.location.contains, US Census 2000 Tract 34027043401
Morris County, location.location.contains, Long Hill Township
Morris County, location.statistical_region.population, m.0jtd0vd
Morris County, location.location.contains, Ford-Faesch House
Morris County, location.location.contains, US Census 2000 Tract 34027042302
Morris County, location.us_county.hud_county_place, Budd Lake
Morris County, location.statistical_region.population, m.066gvss
Morris County, location.location.contains, US Census 2000 Tract 34027044701
Morris County, location.location.contains, Port Morris
Morris County, location.location.area, 1245.78428107
Morris County, location.location.contains, Drakestown
Morristown, location.hud_county_place.place, Morristown
Morris County, location.location.contains, Lake Musconetcong
Morris County, location.location.contains, US Census 2000 Tract 34027041000
Morris County, location.location.contains, Harding Township
Morris County, location.location.contains, Boisaubin Manor
Morris County, location.location.contains, US Census 2000 Tract 34027044602
Morris County, location.location.contains, Mount Freedom
Morris County, location.location.contains, Chatham Township
Morris County, location.location.contains, Bridget Smith House
Morris County, location.location.contains, US Census 2000 Tract 34027042301
Morris County, location.location.contains, US Census 2000 Tract 34027043600
Morris County, location.location.contains, Kinnelon
Morris County, location.location.contains, US Census 2000 Tract 34027045802
Morris County, location.us_county.hud_county_place, Lake Telemark
Morris County, location.location.contains, Shady Lawn Manor
Morris County, location.us_county.hud_county_place, Morristown
Morris County, location.location.contains, 07438
Morris County, location.location.contains, US Census 2000 Tract 34027045701
Morris County, location.location.contains, First Church of Hanover
Morris County, location.location.contains, Great Swamp National Wildlife Refuge
Morris County, location.location.contains, Ridgedale Park
Morris County, location.location.contains, m.0119y2d6
Morris County, location.location.contains, US Census 2000 Tract 34027040805
Morris County, location.location.contains, US Census 2000 Tract 34027045603
Morris County, location.statistical_region.rent50_4, m.05gdwf4
Morris County, location.location.contains, 07005
Morris County, location.location.contains, Troy Meadows
Springtown, location.location.containedby, Morris County
Morris County, location.location.contains, Landing Masonry Bridge
Morris County, location.location.contains, Mine Hill
Morris County, location.location.contains, Troy Hills
Morris County, location.statistical_region.population, m.066gvr2
Morris County, location.location.contains, Milton
Morris County, location.location.contains, Victory Gardens
Morris County, location.location.contains, Alfred T. Ringling Manor
Morris County, location.location.contains, Lake Shawnee
Mayor of Morristown, common.topic.notable_types, Government Office or Title
Morris County, location.location.contains, Green Lake
Morris County, location.location.contains, Hacklebarney
Morris County, location.location.contains, 07035
Morris County, location.us_county.hud_county_place, Victory Gardens
Morris County, location.location.contains, Mountain Lakes
Morris County, location.location.contains, 07801
Morris County, location.location.contains, US Census 2000 Tract 34027043100
Morris County, location.location.adjoin_s, m.03jt97l
Morris County, location.location.contains, Jefferson
Hurdtown, location.location.containedby, Morris County
Morris County, location.location.contains, US Census 2000 Tract 34027044403
Morris County, location.location.contains, Hanover
Morris County, location.location.contains, Morris Plains
Morris County, location.location.contains, Charlotteburg
Morris County, location.location.contains, Powerville
Morris County, location.location.contains, US Census 2000 Tract 34027042900
Morris County, location.location.geolocation, m.0k9658
Morris Plains, location.hud_county_place.county, Morris County
Morris County, location.location.contains, Berkshire Valley
Morris County, location.location.contains, US Census 2000 Tract 34027041702
Morris County, location.location.contains, Pompton Plains
Morris County, location.location.contains, US Census 2000 Tract 34027041100
Morris County, location.location.contains, 07857
Morris County, location.location.contains, US Census 2000 Tract 34027045601
Morris County, location.location.contains, Lake Arrowhead
Morris County, location.location.contains, US Census 2000 Tract 34027044702
Morris County, location.location.contains, US Census 2000 Tract 34027041704
Morris County, location.location.contains, 07976
Morris County, location.location.contains, Whippany
Morris County, location.location.contains, 07935
Morris County, location.location.adjoin_s, m.03jr73n
Morris County, location.location.contains, Fox Hill
Taylortown, location.location.containedby, Morris County
Morris County, location.location.contains, Lake Junction
Morris County, location.location.contains, US Census 2000 Tract 34027040102
Morris County, location.us_county.hud_county_place, Kinnelon
Morris County, location.us_county.hud_county_place, Mountain Lakes
m.0w_6dp_, location.mailing_address.citytown, Morris County
Morris County, location.location.contains, Fayson Lakes
Morris County, location.location.contains, Denville
Morris County, location.location.contains, US Census 2000 Tract 34027040801
Morris County, location.location.contains, Lyonsville
Morris County, location.location.adjoin_s, m.03jpsl9
Morris County, location.location.contains, US Census 2000 Tract 34027042200
Morris County, location.location.contains, Pleasant Plains
Morris County, location.us_county.hud_county_place, Riverdale
Morris County, location.location.contains, 07878
Morris County, location.location.contains, US Census 2000 Tract 34027044601
Morris County, location.location.contains, Floral Hill
Morris County, location.location.contains, Black Brook
Morris County, location.location.contains, US Census 2000 Tract 34027041400
Morris County, location.location.contains, 07856
Morris County, location.location.contains, Friends Meetinghouse
Morris County, location.location.contains, g.120qd279
Morris County, location.location.contains, US Census 2000 Tract 34027041901
Morris County, location.location.contains, US Census 2000 Tract 34027040300
Morris County, location.location.contains, 07034
Morris County, location.location.contains, Woodport
Morris County, location.location.contains, Prospect Point
m.0jvw23l, location.administrative_division_capital_relationship.administrative_division, Morris County
Morris County, location.location.contains, Netcong
Morris County, location.us_county.hud_county_place, Boonton
Morris County, location.statistical_region.population, m.066gvs6
Morris County, location.location.contains, East Hanover
m.0102jsjx, government.government_position_held.jurisdiction_of_office, Morristown
Morris County, location.location.people_born_here, John McLean
Morris County, location.location.contains, Cedar Knolls
Morris County, location.location.contains, 07803
Morris County, location.us_county.hud_county_place, Morris County / County Place 342448
Morris County, location.location.contains, US Census 2000 Tract 34027040803
Morris County, location.location.contains, Brook Valley
Morris County, location.location.contains, US Census 2000 Tract 34027043700
Morris County, location.us_county.hud_county_place, Netcong
Morris County / County Place 3402799999, location.hud_county_place.county, Morris County
Morris County, location.location.contains, Pleasant Hill
Morris County, location.location.contains, 07960
Morris County, location.location.adjoin_s, m.03jqpfl
Morris County, location.location.contains, US Census 2000 Tract 34027043000
Morris County, location.location.contains, US Census 2000 Tract 34027045702
Morris County, location.location.contains, Afton
Morris County, location.location.contains, US Census 2000 Tract 34027040500
Morris County, location.location.contains, Yardley Village
Morris County, location.dated_location.date_founded, 1739
m.0102jsqh, government.government_position_held.jurisdiction_of_office, Morristown
Morris County, location.location.contains, 07834
Morris County, location.administrative_division.second_level_division_of, United States of America
Morris County, location.location.contains, Hopatcong State Park
Morris County, location.location.contains, Spicertown
Morris County, location.statistical_region.population, m.066gvvn
Morris County, location.location.contains, Coleman Hollow
Morristown, location.hud_county_place.county, Morris County
Morris County, location.location.contains, 07970
Morris County, location.us_county.hud_county_place, Rockaway
Morris County, location.location.contains, 07853
Morris County, location.location.contains, US Census 2000 Tract 34027045801
Morris County, location.location.contains, US Census 2000 Tract 34027042100
Morris County, location.location.contains, US Census 2000 Tract 34027041802
Morris County, location.location.contains, Wharton
Morris County, location.us_county.hud_county_place, Butler
Morris County, location.location.contains, Morristown
Morris County, location.location.contains, Fairmount
Morris County, location.location.contains, 07945
Morris County, location.location.contains, US Census 2000 Tract 34027040400
Morris County, location.location.contains, Hilltown
Morris County, location.location.contains, Sutton Park
Morris County, location.location.contains, 07842
Morris County, location.location.contains, Pleasant Valley
Morris County, location.location.contains, Stephensburg
Morris County, location.location.contains, Morristown National Historical Park
Morris County, location.location.contains, US Census 2000 Tract 34027045604
Mayor of Morristown, government.government_position_held.office_position_or_title, m.0102jsqh
Morris County, location.location.contains, Logansville
Morris County, location.location.contains, US Census 2000 Tract 34027043302
Morris County, location.location.contains, 07058
Morris County, location.location.contains, Ralston
Morris County, location.location.contains, 07927
Morris County, location.location.contains, Davis Bridge
Morris County, location.location.contains, Kenvil
Morris County, location.location.contains, US Census 2000 Tract 34027043200
Morris County, location.location.contains, US Census 2000 Tract 34027042500
Morris County, location.location.contains, 07054
Morris County, location.location.contains, 07981
Mayor of Morristown, government.government_office_or_title.office_holders, m.0102jsqh
Morris County, location.location.contains, Weldon
Morris County, location.location.contains, The Tourne
Morris County, location.location.adjoin_s, m.03jpgfd
m.0102jsjx, government.government_position_held.office_position_or_title, Mayor of Morristown
Morris County, location.location.contains, Osborn Mills
Morris County, location.location.contains, US Census 2000 Tract 34027041701
Morris County, location.location.contains, US Census 2000 Tract 34027043301
Morris County, location.location.contains, Pequannock Township School District
Morris County, location.location.contains, 07405
Morris County, location.location.contains, US Census 2000 Tract 34027042800
Morris County, location.location.contains, Mennen Arena
Morris County, location.statistical_region.rent50_3, m.05gdwdy
Morris County, location.location.contains, US Census 2000 Tract 34027044000
Morris County, location.location.contains, Ford Mansion
Morris County, location.statistical_region.population, m.066gvr8
Morris County, location.location.contains, US Census 2000 Tract 34027045300
Morris County, location.location.contains, 07847
Morris County, location.location.contains, 07946
Morris County, location.location.contains, Monroe
Morris County, location.statistical_region.population, m.0k6ltlt
Morris County, location.location.contains, 07440
Morris County, location.location.contains, Whippany Railway Museum
Morris County, location.location.contains, Lake Hopatcong
Morris County, location.location.contains, US Census 2000 Tract 34027045100
Morris County, location.location.contains, Madison Heights
Mayor of Morristown, government.government_office_or_title.office_holders, m.0102jsjx
Morris County, location.location.contains, US Census 2000 Tract 34027042600
Morris County, location.us_county.hud_county_place, Long Valley
m.0102jsqh, government.government_position_held.office_position_or_title, Mayor of Morristown
Morris County, location.location.contains, US Census 2000 Tract 34027043402
Morris County, location.statistical_region.population, m.066gvtx
Morris County, location.location.contains, US Census 2000 Tract 34027045401
Morris County, location.location.contains, US Census 2000 Tract 34027041604
Morris County, location.us_county.hud_county_place, Morris County / County Place 3402799999
Morris County, location.us_county.hud_county_place, Dover
Morris County, location.location.contains, US Census 2000 Tract 34027042700
Morris County, location.us_county.county_seat, Morristown
Morris County, location.location.contains, US Census 2000 Tract 34027044404
Morris County, location.location.contains, US Census 2000 Tract 34027040600
Morris County, location.us_county.hud_county_place, Wharton
Morristown, location.location.containedby, Morris County

Answer: Morris County