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: where is washington d.c. at? 
Knowledge Triplets: Washington, D.C., travel.travel_destination.tourist_attractions, National Museum of Natural History
Washington, D.C., base.biblioness.bibs_topic.subsumes, Washington
20008, location.location.containedby, Washington, D.C.
Washington, D.C., travel.travel_destination.tourist_attractions, Sewall-Belmont House and Museum
Contiguous United States, location.location.contains, Washington, D.C.
D.C. United, sports.sports_team.location, Washington, D.C.
11th St NW and G St NW, location.location.containedby, Washington, D.C.
Southwest, Washington, D.C., common.topic.notable_types, Location
Washington, D.C., travel.travel_destination.tourist_attractions, Art Museum of the Americas
Washington, D.C., common.topic.webpage, m.0b461js
Washington Dulles International Airport, aviation.airport.serves, Washington, D.C.
Washington, D.C., location.statistical_region.rent50_0, m.05g9r__
Washington, D.C., common.topic.webpage, m.09y52b9
Washington, D.C., common.topic.webpage, m.09x5h2g
Washington, D.C., common.topic.webpage, m.09y7j5b
Washington, D.C., film.film_location.featured_in_films, Head of State
Washington, D.C., location.citytown.postal_codes, 20010
Washington, D.C., travel.travel_destination.how_to_get_here, m.051j9cz
Washington, D.C., common.topic.webpage, m.09ygwvy
Washington, D.C., location.statistical_region.rent50_3, m.05g9s0n
Washington, D.C., location.statistical_region.religions, m.04405z6
Washington, D.C., common.topic.webpage, m.0b497tz
20016, location.location.containedby, Washington, D.C.
Washington, D.C., base.biblioness.bibs_topic.subsumes, Washington, D.C.
Washington, D.C., travel.travel_destination.tourist_attractions, National Museum of African Art
Washington, D.C., location.statistical_region.religions, m.04403rl
Washington, D.C., location.location.partially_contains, Chesapeake and Ohio Canal National Historical Park
Washington, D.C., location.citytown.postal_codes, 20022
20017, location.location.containedby, Washington, D.C.
Washington, D.C., travel.travel_destination.tourist_attractions, The Historical Society of Washington, D.C.
Washington, D.C., common.topic.webpage, m.09ymy8g
Washington, D.C., location.statistical_region.religions, m.04406nr
The Washington Examiner, book.newspaper.circulation_areas, Washington, D.C.
m.05ndb6r, base.aubreymaturin.place_mention.place, Washington, D.C.
Washington, D.C., common.topic.webpage, m.09xxpcc
Washington, base.biblioness.bibs_topic.is_really, Washington, D.C.
Southwest, Washington, D.C., location.location.containedby, Washington, D.C.
Washington, D.C., travel.travel_destination.tourist_attractions, National Air and Space Museum
National Archives Building, travel.tourist_attraction.near_travel_destination, Washington, D.C.
Washington, D.C., travel.travel_destination.tourist_attractions, National Archives Building
Washington, D.C., location.hud_foreclosure_area.total_residential_addresses, m.07cmy46
Washington, D.C., location.citytown.postal_codes, 20020
20004, location.location.containedby, Washington, D.C.
Washington, D.C., location.statistical_region.religions, m.04406k9
The Historical Society of Washington, D.C., common.topic.image, City museum dc
Washington, D.C., location.location.containedby, United States of America
National Postal Museum, travel.tourist_attraction.near_travel_destination, Washington, D.C.
20005-2110, location.location.containedby, Washington, D.C.
Washington, D.C., location.statistical_region.religions, m.04403w5
Washington, D.C., travel.travel_destination.tourist_attractions, Newseum
Washington, D.C., common.topic.webpage, m.09wz769
Washington, D.C., travel.travel_destination.tourist_attractions, The Kreeger Museum
Washington, D.C., book.book_subject.works, The Secret Architecture of Our Nation's Capital: The Masons and the Building of Washington, D.C.
Washington, D.C., location.statistical_region.rent50_2, m.05g9s0f
Washington, D.C., travel.travel_destination.tourist_attractions, Shiloh Baptist Church
Washington, D.C., common.topic.webpage, m.0b6rt_s
Washington, D.C., location.statistical_region.rent50_1, m.05g9s06
Washington, D.C., common.topic.webpage, m.09x4mtb
20001, location.location.containedby, Washington, D.C.
Chinatown, location.location.containedby, Washington, D.C.
Washington, D.C., common.topic.webpage, m.0b49774
Washington, D.C., government.governmental_jurisdiction.agencies, District of Columbia Department of Transportation
Washington, D.C., common.topic.webpage, m.09wbm5c
Washington, D.C., common.topic.webpage, m.09ww9zq
National Aquarium in Washington, D.C., location.location.geolocation, m.0d4pkzx
Washington, D.C., travel.travel_destination.tourist_attractions, National Building Museum
Washington, D.C., location.location.partiallycontains, m.0wg9d6x
Washington, D.C., travel.travel_destination.tourist_attractions, National Aquarium in Washington, D.C.
Washington, D.C., common.topic.notable_for, g.1256ktvlv
Washington, D.C., location.citytown.postal_codes, 20004
Washington, D.C., common.topic.webpage, m.09yf8kr
Washington, D.C., travel.travel_destination.tourist_attractions, Madame Tussauds DC
Washington, D.C., location.citytown.postal_codes, 20012
Washington, D.C., location.location.adjoin_s, m.02thsh5
Washington, D.C., common.topic.webpage, m.09y4rw5
Washington, D.C., common.topic.webpage, m.0b47vps
Washington, D.C., location.citytown.postal_codes, 20002
The Historical Society of Washington, D.C., travel.tourist_attraction.near_travel_destination, Washington, D.C.
Washington, D.C., common.topic.webpage, m.09xgzpm
Washington, D.C., location.location.containedby, Area code 202
Washington, D.C., common.topic.webpage, m.09xnpf9
Washington, D.C., location.location.adjoin_s, m.02tjggz
Washington, D.C., common.topic.webpage, m.09yv_jp
Washington, D.C., location.hud_foreclosure_area.hhuniv, m.07cmy38
Washington, D.C., travel.travel_destination.tourist_attractions, White House
Washington, D.C., travel.travel_destination.tourist_attractions, Washington Monument
Washington, D.C., travel.travel_destination.tourist_attractions, National Portrait Gallery
1900 K Street, location.location.containedby, Washington, D.C.
20057, location.location.containedby, Washington, D.C.
Washington, D.C., location.location.containedby, South Atlantic States
Washington, D.C., location.hud_county_place.place, Washington, D.C.
Washington, D.C., film.film_location.featured_in_films, The Other City
Washington, D.C., location.location.containedby, Contiguous United States
20015, location.location.containedby, Washington, D.C.
United States Capitol Visitor Center, location.location.containedby, Washington, D.C.
United States Capitol, travel.tourist_attraction.near_travel_destination, Washington, D.C.
Washington Monument, travel.tourist_attraction.near_travel_destination, Washington, D.C.
Washington, D.C., location.citytown.postal_codes, 20019
20330-1670, location.location.containedby, Washington, D.C.
National Portrait Gallery, travel.tourist_attraction.near_travel_destination, Washington, D.C.
Washington, D.C., location.metropolitan_area_anchor.metropolitan_area, Baltimore–Washington Metropolitan Area
20024-2126, location.location.containedby, Washington, D.C.
Washington, D.C., location.statistical_region.religions, m.0440610
Washington, D.C., common.topic.webpage, m.09wxc62
Washington, D.C., common.topic.webpage, m.0b485qq
Washington, D.C., location.location.nearby_airports, Baltimore–Washington International Airport
Washington, D.C., common.topic.webpage, m.09ys11t
Washington, D.C., common.topic.webpage, m.09w_pcd
Washington, D.C., common.topic.webpage, m.09w5q9t
The Historical Society of Washington, D.C., architecture.museum.address, m.05lcpgr
Washington Monument, base.usnationalparks.us_national_park.state, Washington, D.C.
Washington, D.C., location.citytown.postal_codes, 20018
Washington, D.C., common.topic.webpage, m.09x2nhc
Washington, D.C., common.topic.webpage, m.09y60ch
Washington, D.C., film.film_location.featured_in_films, Being There
Washington, D.C., travel.travel_destination.tourist_attractions, National Museum of African American History and Culture
Washington, D.C., location.statistical_region.co2_emissions_industrial, m.045kc7p
20330, location.location.containedby, Washington, D.C.
Washington Coliseum, location.location.containedby, Washington, D.C.
National Air and Space Museum, location.location.containedby, Southwest, Washington, D.C.
Washington, D.C., travel.travel_destination.tourist_attractions, National World War II Memorial
Washington, D.C., common.topic.webpage, m.051kbf_
Washington, D.C., location.location.contains, Mid-Atlantic states
Washington, D.C., common.topic.webpage, m.09w286z
Washington, D.C., common.topic.webpage, m.0b480l4
Southwest, Washington, D.C., location.location.contains, National Museum of African Art
Washington, D.C., location.location.partially_contains, Rock Creek
Washington, D.C., travel.travel_destination.tourist_attractions, Renwick Gallery
18th Street NW, location.location.containedby, Washington, D.C.
Washington, D.C., common.topic.webpage, m.09x26t9
Washington, D.C., travel.travel_destination.tourist_attractions, United States Capitol
Washington, D.C., common.topic.image, DCmontage2
Washington, D.C., travel.travel_destination.tourist_attractions, Franklin Delano Roosevelt Memorial
Washington, D.C., location.location.partiallycontains, m.0wg9d6r
Washington, D.C., common.topic.webpage, m.09wprzj
Washington, D.C., travel.travel_destination.how_to_get_here, m.051j8z1
Washington, D.C., location.citytown.postal_codes, 20057
Washington, D.C., travel.travel_destination.tourist_attractions, Thomas Jefferson Memorial
Washington, D.C., location.location.adjoin_s, m.0h7y837
Washington, D.C., location.administrative_division.country, United States of America
Washington, D.C., travel.travel_destination.tourist_attractions, National Museum of American History
Washington, D.C., travel.travel_destination.tourist_attractions, Thomas Jefferson Building
Washington, D.C., common.topic.webpage, m.09yc19r
Washington, D.C., location.statistical_region.religions, m.04405pg
Washington, D.C., location.statistical_region.religions, m.0440628
Washington, D.C., location.citytown.postal_codes, 20502
Washington, D.C., common.topic.webpage, m.09ww86j
Washington, D.C., location.statistical_region.religions, m.044061n
Washington, D.C., travel.travel_destination.tourist_attractions, Folger Shakespeare Library
South Atlantic States, location.location.contains, Washington, D.C.
Washington, D.C., location.citytown.postal_codes, 20024
Embassy of Colombia, Washington, D.C., location.location.containedby, Washington, D.C.
White House, location.location.containedby, Washington, D.C.
Washington, D.C., common.topic.webpage, m.09x1q9t
Washington, D.C., base.biblioness.bibs_location.country, United States of America
Washington Nationals, sports.sports_team.location, Washington, D.C.
Washington, D.C., travel.travel_destination.tourist_attractions, National Museum of Women in the Arts
White House Complex, location.location.containedby, Washington, D.C.
Washington, D.C., location.citytown.postal_codes, 20026
Washington, D.C., base.wikipedia_infobox.settlement.area_code, Area code 202
Washington, D.C., travel.travel_destination.tourist_attractions, Dumbarton Oaks
Washington, D.C., common.topic.webpage, m.0b46w3f
Washington, D.C., common.topic.image, WashMonument WhiteHouse
Washington, D.C., common.topic.webpage, m.09x0xww
Washington, D.C., common.topic.webpage, m.09x3svm
National Museum of American History, location.location.containedby, Washington, D.C.
Washington Capitals, sports.sports_team.location, Washington, D.C.
Washington, D.C., common.topic.webpage, m.09x3s3r
Washington, D.C., location.citytown.postal_codes, 20064
National Postal Museum, location.location.containedby, Washington, D.C.
1701 Pennsylvania Avenue, location.location.containedby, Washington, D.C.
Washington, D.C., common.topic.webpage, m.0b483wk
Washington, D.C., location.citytown.postal_codes, 20015-2601
20006, location.location.containedby, Washington, D.C.
Washington, D.C., location.citytown.postal_codes, 20501
Washington, D.C., common.topic.article, m.0rh6w
Washington, D.C., travel.travel_destination.tourist_attractions, B'nai B'rith Klutznick National Jewish Museum
The Washington Post, book.newspaper.circulation_areas, Washington, D.C.
Washington, D.C., location.citytown.postal_codes, 20013
Washington, D.C., common.topic.webpage, m.09yy4nr
Washington, D.C., common.topic.webpage, m.09y648v
Washington, D.C., common.topic.webpage, m.09wxbv8
Washington, D.C., location.location.partially_contains, Potomac River
Washington, D.C., travel.travel_destination.tourist_attractions, Smithsonian Institution Building
Washington, D.C., location.citytown.postal_codes, 20001
Washington, D.C., location.citytown.postal_codes, 20005-2110
20052, location.location.containedby, Washington, D.C.
Washington, D.C., common.topic.webpage, m.09y7d4z
Washington, D.C., common.topic.webpage, m.09wzh3l
Washington, D.C., travel.travel_destination.tourist_attractions, United States Holocaust Memorial Museum
20010, location.location.containedby, Washington, D.C.
Washington, D.C., location.location.adjoin_s, m.046ct19
Washington, D.C., common.topic.webpage, m.09x87fl
The Historical Society of Washington, D.C., location.location.geolocation, m.012288zl
20019, location.location.containedby, Washington, D.C.
Washington, D.C., common.topic.webpage, m.09x3wn0
Washington, D.C., common.topic.webpage, m.09yxd3x
Area code 202, location.location.contains, Washington, D.C.
Washington, D.C., film.film_location.featured_in_films, Jazz in the Diamond District
Washington, D.C., common.topic.webpage, m.09x0nqz
Washington, D.C., government.governmental_jurisdiction.agencies, Washington Metropolitan Area Transit Authority
Washington, D.C.: Capital of the reality TV nation, common.resource.annotations, m.09xgzpm
Washington, D.C., common.topic.webpage, m.09xnm1z
Washington, D.C., location.hud_foreclosure_area.ofheo_price_change, m.07cmy4m
20007, location.location.containedby, Washington, D.C.
Washington, D.C., base.arthist.helynevek.intezmeny, National Gallery of Art
Washington, D.C., location.statistical_region.co2_emissions_mobile, m.045kr7r
Washington, D.C., location.hud_foreclosure_area.bls_unemployment_rate, m.07cmy4f
Washington, D.C., common.topic.webpage, m.09yv3fq
Washington, D.C., location.citytown.postal_codes, 20015
Washington, D.C., base.aareas.schema.administrative_area.administrative_parent, United States of America
Washington, D.C., location.location.time_zones, Eastern Time Zone
Washington, D.C., location.citytown.postal_codes, 20016
Washington, D.C., travel.travel_destination.tourist_attractions, Freer Gallery of Art
Washington, D.C., government.governmental_jurisdiction.agencies, District of Columbia Department of Parks and Recreation
Washington, D.C., common.topic.webpage, m.09y7mpw
Washington, D.C., location.hud_foreclosure_area.total_90_day_vacant_residential_addresses, m.07cmy3_
20003, location.location.containedby, Washington, D.C.
Washington, D.C., travel.travel_destination.tourist_attractions, National Museum of Crime & Punishment
Washington, D.C., location.citytown.postal_codes, 20006
Washington, D.C., film.film_location.featured_in_films, Night at the Museum: Battle of the Smithsonian
Washington, D.C., common.topic.webpage, m.0b47b2n
Washington, D.C., travel.travel_destination.tourist_attractions, Hillwood Estate, Museum & Gardens
Washington, D.C., location.statistical_region.religions, m.044059d
Washington, D.C., location.statistical_region.co2_emissions_commercial, m.045jqgr
Washington, D.C., location.citytown.postal_codes, 20005
National Mall, location.location.containedby, Washington, D.C.
Washington, D.C., location.statistical_region.gdp_nominal, m.04ftp1h
Washington, D.C., travel.travel_destination.tourist_attractions, Lincoln Memorial
Washington, D.C., location.location.geolocation, m.02h4qxv
Washington, D.C., common.topic.webpage, m.0b46xky
Mid-Atlantic states, location.location.contains, Washington, D.C.
Washington, D.C., common.topic.webpage, m.09wgfvd
Washington, D.C., travel.travel_destination.how_to_get_here, m.051j6rl
Washington, D.C., location.citytown.postal_codes, 20052
Washington, D.C., location.location.containedby, South Atlantic States
Washington, D.C., common.topic.webpage, m.09x874c
Washington, D.C., common.topic.webpage, m.09yv1cr
20064, location.location.containedby, Washington, D.C.
Washington, D.C., travel.travel_destination.tourist_attractions, Hirshhorn Museum and Sculpture Garden
Washington, D.C., travel.travel_destination.how_to_get_here, m.052tb6s
Washington, D.C., common.topic.webpage, m.09ylbnw
Washington, D.C., travel.travel_destination.tourist_attractions, Corcoran Gallery of Art
Washington, D.C., location.citytown.postal_codes, 20003
Washington, D.C., location.location.containedby, Mid-Atlantic states
DC USA, location.location.containedby, Washington, D.C.
Washington, D.C., common.topic.webpage, m.0b45s41
Washington, D.C., location.citytown.postal_codes, 20011
Washington, D.C., common.topic.webpage, m.09x6zyf
Washington, D.C., common.topic.webpage, m.09yv3bb
Washington, D.C., common.topic.webpage, m.09xsklq
Ronald Reagan Washington National Airport, aviation.airport.serves, Washington, D.C.
20020, location.location.containedby, Washington, D.C.
Washington, D.C., common.topic.webpage, m.09y72m2
Washington, D.C., common.topic.webpage, m.09w5stf
m.06zjd92, location.mailing_address.state_province_region, Washington, D.C.
Washington, D.C., common.topic.webpage, m.09x3434
Washington, D.C., common.topic.webpage, m.09y3bzg
Washington, D.C., common.topic.webpage, m.09ybw8r
National Mall, travel.tourist_attraction.near_travel_destination, Washington, D.C.
Washington, D.C., location.citytown.postal_codes, 20017
20009-1645, location.location.containedby, Washington, D.C.
United States of America, location.country.capital, Washington, D.C.
Washington, D.C., common.topic.webpage, m.0b46l1j
m.06_0936, location.mailing_address.state_province_region, Washington, D.C.
Washington, D.C., location.statistical_region.religions, m.04405ps
Washington, D.C., travel.travel_destination.tourist_attractions, Anacostia Community Museum
Washington, D.C., travel.travel_destination.tourist_attractions, National Postal Museum
Washington, D.C., location.statistical_region.religions, m.04406q9
National Aquarium in Washington, D.C., location.location.containedby, Washington, D.C.
Washington, D.C., location.statistical_region.religions, m.04406j6
20012, location.location.containedby, Washington, D.C.
Washington, D.C., common.topic.webpage, m.0b46d5q
Washington, D.C., travel.travel_destination.tourist_attractions, The Phillips Collection
Interior Museum, location.location.containedby, Washington, D.C.
National Archives Building, location.location.containedby, Washington, D.C.
Washington, D.C., travel.travel_destination.tourist_attractions, Textile Museum
Washington, D.C., travel.travel_destination.tourist_attractions, The Octagon House
Washington, D.C., location.citytown.postal_codes, 20059
Washington, D.C., travel.travel_destination.climate, m.052mvdt
Southwest, Washington, D.C., location.location.contains, National Air and Space Museum
Washington, D.C., location.statistical_region.religions, m.044064y
20059, location.location.containedby, Washington, D.C.
Washington, D.C., location.location.containedby, United States, with Territories
Washington, D.C., travel.travel_destination.tourist_attractions, National Museum of the American Indian
Washington, D.C., common.topic.webpage, m.09w28s0
Washington, D.C., travel.travel_destination.tourist_attractions, International Spy Museum
20015-2601, location.location.containedby, Washington, D.C.
20018, location.location.containedby, Washington, D.C.
Washington, D.C., travel.travel_destination.tourist_attractions, National Mall
Washington, D.C., travel.travel_destination.tourist_attractions, Old Stone House
Washington, D.C., location.location.partiallycontains, m.0wg9d7d
20002, location.location.containedby, Washington, D.C.
Washington, D.C., location.location.nearby_airports, Washington Dulles International Airport
Washington, D.C., location.citytown.postal_codes, 20023
Washington, D.C., common.topic.webpage, m.09wtbq0
Washington, D.C., location.citytown.postal_codes, 20008
The Historical Society of Washington, D.C., common.topic.image, Central Public Library & City Museum of Washington, D
Washington, D.C., travel.travel_destination.tourist_attractions, United States Naval Observatory
United States Capitol, location.location.containedby, Washington, D.C.
Washington, D.C., location.location.nearby_airports, Ronald Reagan Washington National Airport
National Building Museum, travel.tourist_attraction.near_travel_destination, Washington, D.C.
Washington, D.C., location.statistical_region.religions, m.0440636
Southwest, Washington, D.C., location.location.contains, Hirshhorn Museum and Sculpture Garden
Washington, D.C., base.aubreymaturin.place.mentions, m.05ndb6r
Constitution Avenue, location.location.containedby, Washington, D.C.
Washington, D.C., travel.travel_destination.local_transportation, Washington Metro
Washington, D.C., travel.travel_destination.tourist_attractions, Old Patent Office Building
Washington, D.C., common.topic.webpage, m.0b46d3j
Washington, D.C., location.location.adjoin_s, m.0h7y9bl
Washington, D.C., travel.travel_destination.tourist_attractions, Saint John Paul II National Shrine
Washington, D.C., travel.travel_destination.tourist_attractions, National Gallery of Art East Building
Washington, D.C., location.citytown.postal_codes, 20009
m.06_0921, location.mailing_address.state_province_region, Washington, D.C.
20024, location.location.containedby, Washington, D.C.
Washington, D.C., travel.travel_destination.tourist_attractions, Arthur M. Sackler Gallery
Washington, D.C., base.biblioness.bibs_topic.is_really, Washington, D.C.
Washington, D.C., common.topic.webpage, m.09xt4dl
Washington, D.C., common.topic.webpage, m.09x63f9
Washington City Paper, book.newspaper.circulation_areas, Washington, D.C.
Washington, D.C., travel.travel_destination.tourist_attractions, Marian Koshland Science Museum
National Museum of Natural History, location.location.containedby, Washington, D.C.
Washington, D.C., travel.travel_destination.tourist_attractions, National Gallery of Art West Building
Washington, D.C., travel.travel_destination.tourist_attractions, Katzen Arts Center
Washington, D.C., common.topic.webpage, m.09wz935
Washington, D.C., travel.travel_destination.tourist_attractions, Mary McLeod Bethune Council House National Historic Site
Washington, D.C., travel.travel_destination.tourist_attractions, Woodrow Wilson House
Washington, D.C., travel.travel_destination.climate, m.052mvdj
Washington, D.C., location.statistical_region.co2_emissions_residential, m.045jrr_
1625 Eye Street, location.location.containedby, Washington, D.C.
Constitution Avenue, transportation.road.major_cities, Washington, D.C.
Washington, D.C., location.statistical_region.rent50_4, m.05g9s0w
Washington, D.C., common.topic.webpage, m.0b48ndq
Washington, D.C., common.topic.webpage, m.09xjbn8
20005, location.location.containedby, Washington, D.C.
Washington, D.C., common.topic.webpage, m.09wtljc
Washington, D.C., common.topic.webpage, m.09xj8t0
Washington, D.C., travel.travel_destination.climate, m.052mvd7
National Mall and Memorial Parks, location.location.containedby, Washington, D.C.
Washington, D.C., location.administrative_division.first_level_division_of, United States of America
18th Street NW, transportation.road.major_cities, Washington, D.C.
Washington, D.C., location.citytown.postal_codes, 20009-1645
m.09wgfvd, common.webpage.topic, Washington, D.C.
20009, location.location.containedby, Washington, D.C.
Washington, D.C., common.topic.webpage, m.09wwf4k
Washington, D.C., common.topic.notable_types, City/Town/Village
Washington, D.C., common.topic.webpage, m.09wnpfc
White House, travel.tourist_attraction.near_travel_destination, Washington, D.C.
Washington, D.C., common.topic.webpage, m.03ky1_5
Washington, D.C., location.citytown.postal_codes, 20330-1670
Islamic Center of Washington, location.location.containedby, Washington, D.C.
Washington, D.C., location.citytown.postal_codes, 20330
20013, location.location.containedby, Washington, D.C.
Washington, D.C., travel.travel_destination.local_transportation, Metrobus
Washington, D.C., location.citytown.postal_codes, 20007
National Aquarium in Washington, D.C., location.location.containedby, Herbert C. Hoover Building
Washington, D.C., travel.travel_destination.tourist_attractions, Tudor Place
Washington, D.C., travel.travel_destination.tourist_attractions, Kreeger Museum
National Aquarium in Washington, D.C., travel.tourist_attraction.near_travel_destination, Washington, D.C.
Washington, D.C., location.hud_foreclosure_area.estimated_number_foreclosures, m.07cmy3k
Washington, D.C., location.citytown.postal_codes, 20024-2126
Washington, D.C., common.topic.webpage, m.0b47m7q
Washington, D.C., common.topic.webpage, m.09yv333
National Aquarium in Washington, D.C., architecture.museum.address, m.05bln70
Southwest, Washington, D.C., location.location.contains, United States Holocaust Memorial Museum
20011, location.location.containedby, Washington, D.C.
Embassy of the Republic of Macedonia in Washington, D.C., location.location.containedby, Washington, D.C.
West Potomac Park, location.location.containedby, Washington, D.C.
Marine Barracks, Washington, D.C., location.location.containedby, Washington, D.C.
Washington, D.C., location.statistical_region.co2_emissions_total, m.045hrc4
Washington, D.C., common.topic.webpage, m.0b475rg
Washington, D.C., travel.travel_destination.tourist_attractions, Lillian & Albert Small Jewish Museum
Washington, D.C., location.hud_foreclosure_area.estimated_number_of_mortgages, m.07cmy3s
National Building Museum, location.location.containedby, Washington, D.C.
Washington, D.C., book.book_subject.works, The Future Once Happened Here: New York, D.C., L.A., and the Fate of America's Big Cities
Washington Monument, location.location.containedby, Washington, D.C.

Answer: Mid-Atlantic states
South Atlantic States