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 are of the newspaper Duluth News Tribune? 
Knowledge Triplets: Forum Communications, business.business_operation.industry, Advertising
Lake Superior College, location.location.containedby, Duluth
Duluth Kelleys, sports.sports_team.arena_stadium, Athletic Park
Duluth News Tribune, book.periodical.publisher, m.0102_gsz
m.046cw6f, location.adjoining_relationship.adjoins, Duluth
Duluth, location.citytown.postal_codes, 55814
Duluth, location.location.contains, Fire Station No. 1
Forum Communications, business.business_operation.industry, Television
Circulation Areas, type.property.reverse_property, Newspapers
Duluth, location.hud_foreclosure_area.ofheo_price_change, m.07h69_t
Duluth, location.statistical_region.population, m.066f3mq
Forum Communications, common.topic.article, m.04g1d6
Duluth, location.hud_foreclosure_area.hhuniv, m.07h69zh
Duluth, common.topic.image, Skyline-Duluth-20060330
m.0102_h08, book.periodical_publisher_period.periodical, Duluth News Tribune
Lake Superior College, education.educational_institution.campuses, Lake Superior College
Duluth Business University, location.location.containedby, Duluth
Duluth, location.location.nearby_airports, Sky Harbor Airport & Seaplane Base
Duluth, location.location.contains, Regency Beauty Institute-Duluth
Duluth, location.location.contains, Bridge No. 5757
m.0102_gsz, book.periodical_publisher_period.publisher, Knight Ridder
Duluth, location.location.adjoin_s, m.046cw6f
Minnesota, base.biblioness.bibs_location.country, United States of America
City/Town/Village, freebase.type_profile.kind, Definition
United States of America, location.country.first_level_divisions, Minnesota
University of Minnesota Duluth, location.location.containedby, Duluth
Owner, owl#inverseOf, Newspapers Owned
Duluth, location.capital_of_administrative_division.capital_of, m.0jvw29l
Duluth, location.statistical_region.population, m.066f3ps
Duluth, location.statistical_region.population, g.11x1fbs8r
m.0jvw29l, location.administrative_division_capital_relationship.capital, Duluth
Duluth, location.statistical_region.population, g.11x1m0kvd
Duluth, location.citytown.postal_codes, 55812
Duluth, location.location.contains, Duluth Central High School
Duluth, location.location.contains, Duluth Depot
Duluth, location.location.contains, Duluth US Fisheries Station
St. Louis County, location.us_county.county_seat, Duluth
Duluth, sports.sports_team_location.teams, Duluth Kelleys
Business Operation, freebase.type_profile.strict_included_types, Topic
United States of America, base.locations.countries.states_provinces_within, Minnesota
m.0107d40x, book.periodical_publisher_period.periodical, Duluth Budgeteer News
Duluth, location.citytown.postal_codes, 55807
Duluth, periodicals.newspaper_circulation_area.newspapers, Duluth Budgeteer News
United States of America, base.biblioness.bibs_topic.subsumes, United States of America
Duluth, location.location.contains, Sir Benedict's Tavern on the Lake
m.0104ms_h, freebase.valuenotation.has_no_value, To
Forum Communications, book.periodical_publisher.periodicals_published, m.0102_h6l
Duluth, film.film_location.featured_in_films, You'll Like My Mother
Regency Beauty Institute-Duluth, location.location.containedby, Minnesota
Duluth, location.location.contains, Lester River Bridge-Bridge No. 5772
Duluth, travel.travel_destination.tourist_attractions, Tweed Museum of Art
Duluth, location.location.containedby, United States of America
Duluth, location.statistical_region.population, m.0hl8918
The College of St. Scholastica, location.location.containedby, Minnesota
Duluth, location.statistical_region.population, m.0hl894j
m.04yyw6v, common.topic.notable_types, Location
Forum Communications, book.newspaper_owner.newspapers_owned, Grand Forks Herald
Duluth, symbols.namesake.named_after, Daniel Greysolon, Sieur du Lhut
Duluth, location.statistical_region.population, m.0jtnprg
Owner, type.property.schema, Newspaper
Newspaper, freebase.type_profile.kind, Definition
Duluth, location.location.contains, U.S. Army Corps of Engineers Vessel Yard
Duluth, location.statistical_region.population, m.0hl891j
Duluth, location.statistical_region.population, m.0jtphtv
University of Minnesota Duluth, education.educational_institution.campuses, University of Minnesota Duluth
m.0jvw29l, location.administrative_division_capital_relationship.administrative_division, St. Louis County
Forum Communications, common.topic.notable_types, Business Operation
Duluth, location.statistical_region.population, m.0hl8928
Duluth, common.topic.webpage, m.03lq2gd
Forum Communications, business.business_operation.industry, Internet Publishing and Broadcasting and Web Search Portal
Newspaper, freebase.equivalent_topic.equivalent_type, Newspaper
You'll Like My Mother, film.film.featured_film_locations, Duluth
Duluth, location.location.nearby_airports, Duluth International Airport
Duluth, location.location.contains, Spirit Mountain
The McClatchy Company, book.periodical_publisher.periodicals_published, m.0102_h08
Duluth, location.statistical_region.population, g.11x1lxv63
Duluth, travel.travel_destination.tourist_attractions, Glensheen Historic Estate
m.0102_h08, freebase.valuenotation.has_value, From
Duluth, location.location.geolocation, m.0kdgs1
Regency Beauty Institute-Duluth, location.location.containedby, Duluth
Duluth, location.statistical_region.population, g.12vqj6dm4
Regency Beauty Institute-Duluth, education.educational_institution_campus.educational_institution, Regency Beauty Institute-Duluth
m.046cw67, location.adjoining_relationship.adjoins, Duluth
Forum Communications, business.business_operation.industry, Newspaper
Duluth, location.location.contains, Duluth Commercial Historic District
Duluth, location.location.adjoin_s, m.046cw67
City/Town/Village, freebase.type_hints.included_types, Location
m.0102_gsz, freebase.valuenotation.has_value, From
Duluth, location.location.contains, William A. Irvin
Forum Communications, book.newspaper_owner.newspapers_owned, Duluth Budgeteer News
Duluth, location.citytown.postal_codes, 55816
The McClatchy Company, common.topic.notable_types, Business Operation
St. Louis County, location.administrative_division.second_level_division_of, United States of America
Duluth, common.topic.webpage, m.04lt0mb
St. Louis County, location.location.time_zones, Central Time Zone
Duluth, location.hud_county_place.county, St. Louis County
Duluth, location.statistical_region.population, m.0hl8949
Business Operation, freebase.type_hints.included_types, Topic
Duluth News Tribune, common.topic.notable_for, g.125c_3prd
United States of America, location.country.administrative_divisions, Minnesota
Newspaper, type.type.properties, Circulation
Circulation Areas, owl#inverseOf, Newspapers
Duluth, location.location.events, 1920 Duluth lynchings
Duluth, location.statistical_region.population, m.066f3n2
Duluth, location.location.containedby, Minnesota
Duluth International Airport, aviation.airport.serves, Duluth
Duluth, location.statistical_region.population, m.0hl893v
Forum Communications, award.award_nominee.award_nominations, m.0v1dlw0
Duluth, periodicals.newspaper_circulation_area.newspapers, Industrialisti
m.03lf6l7, common.webpage.category, Official Website
The College of St. Scholastica, education.educational_institution.campuses, The College of St. Scholastica
Duluth, location.statistical_region.population, m.066f3pd
Periodical, freebase.type_hints.included_types, Topic
Location, freebase.type_profile.published, Published
Duluth, location.location.contains, The College of St. Scholastica
Duluth, location.location.contains, Duluth State Normal School Historic District
Duluth, travel.travel_destination.tourist_attractions, Duluth Entertainment Convention Center
Duluth, location.statistical_region.population, m.0hl8942
Duluth, location.statistical_region.population, m.066f3nv
Duluth, location.location.contains, Cosmetology Careers Unlimited-Duluth
Duluth, location.location.contains, Beaner's Central Coffeehouse
Minnesota, location.administrative_division.country, United States of America
Duluth, travel.travel_destination.tourist_attractions, North Shore Scenic Railroad
Duluth, common.topic.notable_for, g.125fmmdr8
Duluth, location.statistical_region.population, g.11x1ld8xh
Duluth, location.statistical_region.population, m.0hl892h
Duluth, location.location.contains, Athletic Park
m.0v1dlw0, award.award_nomination.award_nominee, Forum Communications
Duluth, location.statistical_region.population, m.066f3pl
Periodical, type.type.domain, Periodicals
Duluth, location.statistical_region.population, g.11x1fxcjk
Duluth News Tribune, book.periodical.format, m.02np93f
Duluth International Airport, location.location.containedby, United States of America
Newspaper, type.type.properties, Price
Newspaper, type.type.expected_by, Newspaper
m.03lf6l7, common.webpage.topic, Duluth News Tribune
Area code 218, location.location.containedby, Minnesota
Duluth, government.governmental_jurisdiction.governing_officials, m.0101nx20
City/Town/Village, freebase.type_profile.strict_included_types, Topic
m.0102_h6l, freebase.valuenotation.has_no_value, To
Duluth, location.location.contains, Great Lakes Aquarium
Periodical, freebase.type_profile.strict_included_types, Topic
Duluth, location.citytown.postal_codes, 55811
Duluth, location.hud_foreclosure_area.total_residential_addresses, m.07h69_c
Newspaper, freebase.type_profile.strict_included_types, Topic
Duluth, location.statistical_region.population, m.0hl890s
Duluth News Tribune, book.periodical.publisher, m.0102_h6l
Minnesota, periodicals.newspaper_circulation_area.newspapers, Grand Forks Herald
Duluth, location.location.contains, Sacred Heart Cathedral and Cathedral School
Cosmetology Careers Unlimited-Duluth, location.location.containedby, United States of America
Duluth, location.location.contains, Duluth Business University
m.02t7lgf, business.employment_tenure.company, Forum Communications
m.0102_gsz, freebase.valuenotation.has_value, To
Duluth, location.location.contains, Duluth International Airport
Duluth, location.location.contains, Bayfront Festival Park
Duluth, location.location.contains, Kitchi Gammi Club
Duluth, location.citytown.postal_codes, 55802
m.0v1dlw0, award.award_nomination.nominated_for, Grand Forks Herald
Duluth, location.location.contains, Amazing Grace Bakery & Cafe
Duluth, location.location.contains, Duluth Public Library
Duluth, location.statistical_region.population, m.066f3p6
Lake Superior College, education.educational_institution_campus.educational_institution, Lake Superior College
Duluth News Tribune, common.topic.article, m.099mpc
Duluth, location.statistical_region.population, g.11x1cvf60
Duluth, location.location.contains, Duluth South Breakwater Inner Lighthouse
Duluth, government.governmental_jurisdiction.government_bodies, Duluth City Council
Duluth News Tribune, book.periodical.publisher, m.0102_h08
Forum Communications, book.newspaper_owner.newspapers_owned, West Central Tribune
Cosmetology Careers Unlimited-Duluth, location.location.containedby, Duluth
Lake Superior College, location.location.containedby, United States of America
Duluth Business University, education.educational_institution.campuses, Duluth Business University
Industrialisti, book.newspaper.circulation_areas, Duluth
Broadcasting, business.industry.parent_industry, Media
Duluth Business University, location.location.containedby, United States of America
Industrialisti, common.topic.notable_types, Newspaper
Duluth, location.location.contains, Lincoln Branch Library
Duluth, location.citytown.postal_codes, 55805
Duluth, travel.travel_destination.tourist_attractions, Great Lakes Aquarium
Duluth, location.location.contains, Wade Stadium
Newspaper, type.type.properties, Owner
Newspaper, freebase.documented_object.documentation, m.02nqldv
Forum Communications, book.newspaper_owner.newspapers_owned, The Forum of Fargo-Moorhead
The McClatchy Company, business.business_operation.industry, Newspaper
Duluth, location.location.contains, Lake Superior College
Cosmetology Careers Unlimited-Duluth, education.educational_institution_campus.educational_institution, Cosmetology Careers Unlimited-Duluth
Duluth, base.wikipedia_infobox.settlement.area_code, Area code 218
Duluth, location.statistical_region.population, m.066f3p0
Minnesota, location.administrative_division.first_level_division_of, United States of America
The College of St. Scholastica, location.location.containedby, Duluth
The College of St. Scholastica, location.location.containedby, United States of America
Duluth, location.hud_foreclosure_area.total_90_day_vacant_residential_addresses, m.07h69_4
m.0101nx20, government.government_position_held.jurisdiction_of_office, Duluth
Owner, rdf-schema#domain, Newspaper
m.02t7ft9, location.mailing_address.country, United States of America
Duluth, location.statistical_region.population, m.0k6lbkx
Headquarters, rdf-schema#domain, Newspaper
Duluth, location.location.contains, Hartley Building
Duluth, location.location.events, 2013 Duluth Superior Film Festival
Duluth, location.citytown.postal_codes, 55810
Duluth, location.statistical_region.population, m.0hl8939
Duluth Kelleys, sports.sports_team.location, Duluth
Newspaper, type.type.properties, Headquarters
Forum Communications, book.newspaper_owner.newspapers_owned, Duluth News Tribune
St. Louis County, location.us_county.hud_county_place, Duluth
m.0102_gsz, book.periodical_publisher_period.periodical, Duluth News Tribune
Duluth, location.hud_foreclosure_area.bls_unemployment_rate, m.07h69_l
Topic, freebase.type_profile.published, Published
Duluth, location.statistical_region.population, g.11x1gjm0d
St. Louis County, location.location.containedby, United States of America
Duluth Business University, location.location.containedby, Minnesota
Duluth, location.hud_foreclosure_area.estimated_number_foreclosures, m.07h69zq
m.0104ms_h, book.periodical_publisher_period.publisher, Forum Communications
Duluth News Tribune, book.newspaper.circulation_areas, Duluth
Regency Beauty Institute-Duluth, location.location.containedby, United States of America
St. Louis County, location.administrative_division.capital, m.0jvw29l
Forum Communications, business.employer.employees, m.02t7lgf
Duluth, location.location.contains, Fitger Brewing Company
Duluth, location.statistical_region.population, m.0hl892r
The College of St. Scholastica, education.educational_institution_campus.educational_institution, The College of St. Scholastica
Duluth, location.location.contains, Oliver G. Traphagen House
m.02t7ft9, common.topic.notable_types, Location
Duluth, location.citytown.postal_codes, 55803
Cosmetology Careers Unlimited-Duluth, education.educational_institution.campuses, Cosmetology Careers Unlimited-Duluth
Newspaper, common.topic.article, m.02nqldv
University of Minnesota Duluth, location.location.containedby, Minnesota
Duluth, travel.travel_destination.tourist_attractions, Duluth Depot
Duluth, location.statistical_region.population, m.0hl892_
Duluth, travel.travel_destination.tourist_attractions, Spirit Mountain
Duluth, common.topic.article, m.0h1kh
Duluth, periodicals.newspaper_circulation_area.newspapers, Duluth News Tribune
City/Town/Village, freebase.type_profile.strict_included_types, Location
m.03lf6l7, common.webpage.resource, m.0bkq99b
Duluth, location.citytown.postal_codes, 55806
Forum Communications, business.business_operation.industry, Broadcasting
Knight Ridder, common.topic.notable_types, Business Operation
m.0102_h6l, book.periodical_publisher_period.periodical, Duluth News Tribune
Duluth News Tribune, common.topic.webpage, m.03lf6l7
Newspaper, type.type.properties, Circulation Areas
Duluth, location.location.events, 2014 Duluth Superior Film Festival
m.0_zf5rb, business.employment_tenure.company, Forum Communications
Duluth, location.statistical_region.population, g.11x1lb01y
Duluth, location.statistical_region.population, g.11x1cr7j0
City/Town/Village, freebase.type_hints.included_types, Topic
Forum Communications, business.business_operation.industry, Media
m.0102_h6l, book.periodical_publisher_period.publisher, Forum Communications
Duluth, location.location.contains, Piedmont Heights
Minnesota, base.locations.states_and_provences.country, United States of America
Duluth, location.location.contains, Aerial Lift Bridge
m.04lt0mb, common.webpage.category, Official Website
University of Minnesota Duluth, education.educational_institution_campus.educational_institution, University of Minnesota Duluth
Newspaper, type.type.expected_by, Newspapers
Duluth International Airport, location.location.containedby, Duluth
United States of America, location.location.time_zones, Central Time Zone
Duluth, location.location.contains, Duluth Civic Center Historic District
Duluth, location.statistical_region.population, m.0hl8956
Duluth News Tribune, book.newspaper.headquarters, m.04yyw6v
Duluth, periodicals.newspaper_circulation_area.newspapers, Ripsaw
Circulation Areas, type.property.schema, Newspaper
Duluth, travel.travel_destination.tourist_attractions, Lake Superior and Mississippi Railroad
Duluth, location.location.contains, Fond du Lac
Duluth, location.statistical_region.population, m.0hl891t
Lake Superior College, location.location.containedby, Minnesota
Duluth, travel.travel_destination.tourist_attractions, Aerial Lift Bridge
Duluth News Tribune, common.topic.notable_types, Newspaper
Newspaper, freebase.type_hints.included_types, Topic
Duluth News Tribune, book.newspaper.owner, Forum Communications
Circulation Areas, rdf-schema#domain, Newspaper
Duluth, location.statistical_region.population, m.066f3ng
Duluth, travel.travel_destination.tourist_attractions, Canal Park, Duluth
Duluth, common.topic.image, Steep 1st Ave East as viewed from the Lake Walk in Canal Park
Newspaper, type.type.domain, Periodicals
Duluth, location.statistical_region.population, m.066f3mj
Newspaper, freebase.type_hints.included_types, Periodical
Duluth, common.topic.notable_types, City/Town/Village
Duluth, location.statistical_region.population, m.066f3nn
Duluth, location.location.contains, Glensheen Historic Estate
Cosmetology Careers Unlimited-Duluth, location.location.containedby, Minnesota
m.04lt0mb, common.webpage.topic, Duluth
Owner, type.property.reverse_property, Newspapers Owned
Periodical, freebase.type_profile.published, Published
Duluth Business University, education.educational_institution_campus.educational_institution, Duluth Business University
Duluth, location.location.contains, Munger Terrace
Duluth, location.citytown.postal_codes, 55815
St. Louis County, location.location.containedby, Minnesota
Duluth, location.statistical_region.population, g.11x1l9kfp
Duluth, location.location.contains, Pizza Luce Duluth
m.04yyw6v, location.mailing_address.citytown, Duluth
Duluth, location.statistical_region.population, g.11x1gxldm
Location, freebase.type_hints.included_types, Topic
Duluth, location.statistical_region.population, g.11x1d8p28
Minnesota, base.aareas.schema.administrative_area.administrative_parent, United States of America
Forum Communications, business.employer.employees, m.0_zf5rb
Duluth, travel.travel_destination.tourist_attractions, Lake Superior Railroad Museum
Duluth, location.location.events, 2014 Grandma's Marathon
Duluth, location.statistical_region.population, g.11x1d960c
Duluth, location.statistical_region.population, g.11x1kl4ln
Forum Communications, organization.organization.headquarters, m.02t7ft9
Duluth, location.statistical_region.population, m.066f3pz
m.03lq2gd, common.webpage.topic, Duluth
m.04yyw6v, common.topic.notable_for, g.1q5zdjb2h
Duluth, location.statistical_region.population, m.0hl8910
m.01xx10j, common.webpage.topic, Forum Communications
Forum Communications, common.topic.notable_for, g.125fmg3dy
Duluth, location.location.contains, Canal Park, Duluth
m.02np93f, book.periodical_format_period.periodical, Duluth News Tribune
Duluth, location.location.containedby, St. Louis County
Duluth, location.statistical_region.population, g.11x1ksxr7
Duluth, location.location.containedby, St. Louis County
Duluth, location.statistical_region.population, g.11x1j7drv
Headquarters, type.property.schema, Newspaper
m.0107d40x, freebase.valuenotation.has_no_value, To
Daniel Greysolon, Sieur du Lhut, symbols.name_source.namesakes, Duluth
m.0102_h08, book.periodical_publisher_period.publisher, The McClatchy Company
Minnesota, location.location.time_zones, Central Time Zone
Newspaper, type.type.expected_by, Newspapers Owned
Duluth, location.statistical_region.population, g.11bc888gfx
Minnesota, location.location.containedby, United States of America
Duluth, location.citytown.postal_codes, 55808
Duluth, location.statistical_region.population, g.11x1jxk2b
Duluth, location.statistical_region.population, g.11x1fdk5w
Duluth, location.statistical_region.population, m.0hl893k
Duluth, location.location.contains, University of Minnesota Duluth
m.0bkq99b, common.resource.annotations, m.03lf6l7
Duluth, location.statistical_region.population, m.0hl8921
Duluth, location.statistical_region.population, g.11x1fln1x
United States of America, base.aareas.schema.administrative_area.administrative_children, Minnesota
Duluth, location.location.contains, Duluth Missabe and Iron Range Depot
Duluth, location.statistical_region.population, g.11x1ccbgk
Duluth, travel.travel_destination.tourist_attractions, Lake Superior Maritime Visitor Center
Duluth, location.statistical_region.population, m.066f3mx
Duluth News Tribune, book.periodical.first_issue_date, m.02npnht
Business Operation, freebase.type_profile.kind, Definition
Newspaper, type.type.properties, Issues
m.02np93f, book.periodical_format_period.format, Broadsheet
Duluth, location.statistical_region.population, g.11b66bndcg
Duluth, location.hud_county_place.place, Duluth
You'll Like My Mother, film.film.country, United States of America
Regency Beauty Institute-Duluth, education.educational_institution.campuses, Regency Beauty Institute-Duluth
Duluth, location.location.contains, Bridge No. L6007
Forum Communications, book.newspaper_owner.newspapers_owned, Jamestown Sun
Duluth, location.citytown.postal_codes, 55804
Duluth, location.statistical_region.population, g.11x1ft_0c
Duluth, location.location.contains, St. Mark's African Methodist Episcopal Church
Forum Communications, book.periodical_publisher.periodicals_published, m.0104ms_h
University of Minnesota Duluth, location.location.containedby, United States of America
Duluth, location.location.contains, USS ESSEX Shipwreck Site
m.0107d40x, book.periodical_publisher_period.publisher, Forum Communications
Duluth, location.statistical_region.population, m.0hl894_
Duluth, location.location.time_zones, Central Time Zone
Duluth, location.citytown.postal_codes, 55801
Duluth, location.location.contains, Chester Terrace
United States of America, base.biblioness.bibs_topic.is_really, United States of America
Duluth, location.statistical_region.population, m.0hl894s
m.0102_h08, freebase.valuenotation.has_value, To
City/Town/Village, freebase.type_profile.published, Published
Newspaper, freebase.type_profile.published, Published
Duluth, location.hud_foreclosure_area.estimated_number_of_mortgages, m.07h69zy
Knight Ridder, book.periodical_publisher.periodicals_published, m.0102_gsz
Forum Communications, book.periodical_publisher.periodicals_published, m.0107d40x
You'll Like My Mother, film.film.featured_film_locations, Glensheen Historic Estate
Forum Communications, common.topic.webpage, m.01xx10j
Duluth, location.location.contains, Minnesota Point Lighthouse
Duluth News Tribune, book.newspaper.circulation_areas, Duluth
Media, business.industry.child_industry, Broadcasting
Newspaper, freebase.type_profile.equivalent_topic, Newspaper
Duluth, location.location.events, 2014 Garry Bjorklund Half Marathon
Duluth, location.statistical_region.population, g.11x1d_c1h
Duluth, location.location.contains, Historic Central High School

Answer: St. Louis County