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: In what county is the circulation area of the newspaper Brentwood Journal? 
Knowledge Triplets: Brentwood, location.location.people_born_here, Thelma Harper
Brentwood, location.statistical_region.population, g.11x1gzfrc
Brentwood, location.location.contains, Joseph Elliston House
Brentwood, location.location.people_born_here, Van Jefferson
Brentwood, location.location.contains, James Johnston House
Brentwood, location.location.people_born_here, Cooper Wallace
Brentwood, common.topic.article, m.0_xcw
Brentwood, location.statistical_region.population, m.0hmbn2t
Brentwood, location.location.contains, Liberty School
Brentwood, location.statistical_region.population, g.11b66dwnl4
Brentwood, location.location.contains, Thomas Holt House
Area codes 615 and 629, location.location.containedby, Tennessee
Williamson County, location.location.time_zones, Central Time Zone
Thomas Welch, people.person.place_of_birth, Brentwood
Brentwood, location.statistical_region.population, g.11x1h_ytd
Brentwood, location.location.containedby, Williamson County
Brentwood, location.location.people_born_here, Andrew Parker
Brentwood, location.statistical_region.population, g.11x1h821z
Brentwood, location.location.contains, Oak Hall
Owner, owl#inverseOf, Newspapers Owned
Brentwood, location.location.people_born_here, Andrew Bumbalough
Newspaper, type.type.properties, Price
Brentwood, location.hud_county_place.place, Brentwood
Brentwood, location.statistical_region.population, m.0hmbn0l
Brentwood, location.statistical_region.population, m.0k6l5d0
Brentwood, location.statistical_region.population, g.11x1g364m
Brentwood, location.statistical_region.population, m.0hmbn1q
Periodical, type.type.domain, Periodicals
Newspaper, freebase.type_hints.included_types, Topic
Brentwood, location.statistical_region.population, g.11x1mmc42
Brentwood, location.statistical_region.population, g.11x1jh458
Brentwood, location.statistical_region.population, m.0hmbn2l
Brentwood, location.location.contains, Andrew Crockett House
Headquarters, rdf-schema#domain, Newspaper
Newspaper, freebase.type_profile.kind, Definition
Newspaper, freebase.documented_object.documentation, m.02nqldv
Brentwood, location.location.contains, Owen-Cox House
Thelma Harper, people.person.place_of_birth, Brentwood
Brentwood, location.hud_foreclosure_area.total_90_day_vacant_residential_addresses, m.07fz200
Circulation Areas, owl#inverseOf, Newspapers
Brentwood, location.location.people_born_here, Jodie Marsh
Newspaper, type.type.expected_by, Newspapers Owned
Brentwood, location.statistical_region.population, m.0hmbm_p
Brentwood, location.statistical_region.population, m.0hmbn3q
Brentwood, location.hud_foreclosure_area.bls_unemployment_rate, m.07fz20h
New Directions Hair Academy, location.location.containedby, Brentwood
Newspaper, common.topic.article, m.02nqldv
Brentwood, location.statistical_region.population, g.11x1lpydt
Brentwood, base.wikipedia_infobox.settlement.area_code, Area codes 615 and 629
Brentwood, location.statistical_region.population, m.0hmbn18
City/Town/Village, freebase.type_hints.included_types, Topic
Brentwood, location.location.people_born_here, Max Godby
Brentwood, location.statistical_region.population, g.11x1g266n
Brentwood, location.statistical_region.population, g.11x1g5d3b
NationsUniversity, location.location.containedby, Brentwood
Brentwood, location.statistical_region.population, g.12vqh_4xb
Brentwood, location.location.contains, NationsUniversity
Periodical, freebase.type_hints.included_types, Topic
Brentwood, location.citytown.postal_codes, 37027
Brentwood, location.location.contains, Alexander Smith House
Brentwood Journal, book.newspaper.circulation_areas, Brentwood
Circulation Areas, type.property.reverse_property, Newspapers
Brooke Bailey, people.person.place_of_birth, Brentwood
Brentwood, location.statistical_region.population, g.11x1g16n3
Brentwood, location.statistical_region.population, g.11x1j1b6h
Newspaper, freebase.equivalent_topic.equivalent_type, Newspaper
Andrew Parker, people.person.place_of_birth, Brentwood
Pebe Sebert, people.person.place_of_birth, Brentwood
Brentwood Journal, common.topic.notable_for, g.12559npst
Brentwood, location.statistical_region.population, g.11x1fr8dg
Brentwood, location.statistical_region.population, m.0hmbm_x
Owner, type.property.reverse_property, Newspapers Owned
Brentwood, location.statistical_region.population, m.0hmbn10
Brentwood, location.citytown.postal_codes, 37024
Brentwood, location.location.time_zones, Central Time Zone
Brentwood, location.location.containedby, Williamson County
Brentwood, location.location.geolocation, m.0kgzrz
Newspaper, type.type.expected_by, Newspapers
City/Town/Village, freebase.type_profile.kind, Definition
Periodical, freebase.type_profile.published, Published
Brentwood, common.topic.notable_for, g.1259hmsvw
Newspaper, freebase.type_profile.published, Published
Brentwood, location.statistical_region.population, m.0hmbn0t
James Johnston House, location.location.containedby, Brentwood
Brentwood, location.location.contains, William Martin House
Brentwood, location.location.people_born_here, Sean Keveren
Brentwood, location.location.contains, Constantine Sneed House
Williamson County, location.location.containedby, Tennessee
James Johnston House, location.location.containedby, Tennessee
Brentwood Journal, common.topic.notable_types, Newspaper
Brentwood, location.statistical_region.population, g.11x1jrhl9
Brentwood, location.statistical_region.population, g.11x1jp56d
Newspaper, freebase.type_hints.included_types, Periodical
Brentwood, location.hud_foreclosure_area.estimated_number_foreclosures, m.07fz1_h
Brentwood, location.statistical_region.population, g.11x1l2p0z
Brentwood, location.statistical_region.population, m.0hmbn04
Cooper Wallace, people.person.place_of_birth, Brentwood
New Directions Hair Academy, education.educational_institution.campuses, New Directions Hair Academy
Brentwood, location.hud_foreclosure_area.total_residential_addresses, m.07fz207
Newspaper, type.type.expected_by, Newspaper
Headquarters, type.property.schema, Newspaper
New Directions Hair Academy, education.educational_institution_campus.educational_institution, New Directions Hair Academy
Brentwood, location.hud_foreclosure_area.estimated_number_of_mortgages, m.07fz1_q
Brentwood, location.statistical_region.population, m.0hmbn1y
Owner, type.property.schema, Newspaper
NationsUniversity, education.educational_institution.campuses, NationsUniversity
Tennessee, location.location.time_zones, Central Time Zone
Brentwood Journal, book.newspaper.circulation_areas, Brentwood
Circulation Areas, rdf-schema#domain, Newspaper
Brentwood, location.location.contains, New Directions Hair Academy
NationsUniversity, location.location.containedby, Tennessee
Newspaper, type.type.properties, Circulation Areas
Brentwood, location.location.contains, Samuel Crockett House
Brentwood, location.statistical_region.population, m.0hmbn0c
Brentwood, location.location.contains, John Frost House
Brentwood, location.location.contains, Empire Beauty School-Nashville
Brentwood, location.statistical_region.population, m.0hmbn24
Brentwood, location.location.contains, John M. Winstead Houses
Brentwood, location.statistical_region.population, g.11x1kg01k
Brentwood, location.location.containedby, Tennessee
Brentwood, location.statistical_region.population, g.11x1ddsd6
Brentwood, common.topic.image, TNMap-doton-Brentwood
Newspaper, type.type.properties, Issues
Newspaper, type.type.properties, Circulation
Brentwood, location.location.contains, Denny P. Hadley House
Brentwood, location.statistical_region.population, m.0jtcfqy
Brentwood, location.location.people_born_here, Kaysie Lackey
Newspaper, type.type.properties, Headquarters
Brentwood, location.statistical_region.population, m.0hmbn3h
City/Town/Village, freebase.type_profile.published, Published
Brentwood, location.location.contains, Owen-Primm House
Brentwood, location.hud_foreclosure_area.hhuniv, m.07fz1_6
Owner, rdf-schema#domain, Newspaper
Brentwood, periodicals.newspaper_circulation_area.newspapers, Brentwood Journal
Brentwood, location.statistical_region.population, g.11x1llnz_
Jodie Marsh, people.person.place_of_birth, Brentwood
New Directions Hair Academy, location.location.containedby, Tennessee
Brentwood, location.location.people_born_here, Robbie Ray
Newspaper, type.type.properties, Owner
Brentwood, location.location.contains, Mooreland
Topic, freebase.type_profile.published, Published
Brentwood, location.hud_county_place.county, Williamson County
Brentwood, location.statistical_region.population, m.0hmbn30
Brentwood, location.statistical_region.population, g.11x1g28zl
Brentwood, location.statistical_region.population, g.11x1kndp4
Newspaper, type.type.domain, Periodicals
Brentwood, location.statistical_region.population, m.0hmbn38
Circulation Areas, type.property.schema, Newspaper
Brentwood, location.statistical_region.population, g.11x1hjv7d
Brentwood, location.statistical_region.population, g.11x1mfw2b
Brentwood, location.statistical_region.population, m.0hmbn1h
Brentwood, location.location.people_born_here, Bukola Bamigboye
Brentwood, location.statistical_region.population, m.0hmbn2c
Brentwood, location.location.people_born_here, Brooke Bailey
Brentwood, location.hud_foreclosure_area.ofheo_price_change, m.07fz20q
Max Godby, people.person.place_of_birth, Brentwood
Robbie Ray, people.person.place_of_birth, Brentwood
Brentwood, location.location.contains, Ravenswood
Brentwood, location.location.people_born_here, Charles Andrew Howell III
Brentwood, location.location.people_born_here, Pebe Sebert
Periodical, freebase.type_profile.strict_included_types, Topic
Brentwood, location.location.people_born_here, Thomas Welch
Brentwood, common.topic.notable_types, City/Town/Village
Brentwood, location.statistical_region.population, m.0k6l5ct
Williamson County, location.us_county.hud_county_place, Brentwood
Newspaper, freebase.type_profile.equivalent_topic, Newspaper
Brentwood, location.location.contains, Dyer Observatory
City/Town/Village, freebase.type_profile.strict_included_types, Topic
NationsUniversity, education.educational_institution_campus.educational_institution, NationsUniversity
Newspaper, freebase.type_profile.strict_included_types, Topic
Brentwood, location.location.contains, Mountview

Answer: Williamson County