history of d.c. united
notable players
Table:
Name

Nationality

Position

Years

Current Club

Freddy Adu

FW

2004–06

Philadelphia Union

Jeff Agoos

DF

1996–00

Retired

Bobby Boswell

DF

2005–07

Houston Dynamo

Ronald Cerritos

FW

2003–04

Retired

Bobby Convey

MF

2000–04

Toronto FC

Raúl Díaz Arce

MF

1996–97; 2000–01

Retired

Luciano Emilio

FW

2006–09

Atlante UTN

Facundo Erpen

FW

2005–07

Instituto

Alecko Eskandarian

FW

2003–06

Retired

Marco Etcheverry

MF

1996–03

Retired

Marcelo Gallardo

MF

2008

Retired

Christian Gómez

MF

2004–07; 2009

Nueva Chicago

John Harkes

MF

1996–98

Retired

Dema Kovalenko

MF

2003–05

Retired

Roy Lassiter

FW

1998–99; 2002

Retired

Carlos Llamosa

DF

1997–00

Retired

Jaime Moreno

FW

1996–02; 2004–10

Retired; current head of youth development

Bryan Namoff

DF / MF

2001–10

Retired

Ryan Nelsen

DF

2001–05

Retired

Ben Olsen

MF

1998–09

Retired; current head coach

Eddie Pope

DF

1998–02

Retired

Tony Sanneh

MF

1996–98

Retired

Earnie Stewart

MF

2003–04

Retired

Hristo Stoichkov

FW

2003

Retired

Richie Williams

MF

1996–00; 2002

Retired

Danny Allsopp

FW

2010

Retired

Looking at the table on 'history of d.c. united' in the 'notable players' section, identify the correct column type labels for the highlighted column among these candidate types: film.production_company, automotive.model, location.region, automotive.company, baseball.baseball_position, astronomy.astronomical_discovery, medicine.muscle, geography.island, soccer.football_team_manager, law.legal_case, soccer.football_team, finance.currency, biology.animal, metropolitan_transit.transit_stop, ice_hockey.hockey_position, broadcast.tv_channel, architecture.architectural_structure_owner, amusement_parks.ride, language.human_language, education.university, soccer.fifa, sports.sports_league, government.general_election, basketball.basketball_coach, business.brand, chemistry.chemical_compound, location.australian_state, book.book, theater.play, government.government_agency, visual_art.visual_artist, business.consumer_product, royalty.noble_person, rail.locomotive_class, book.written_work, government.governmental_body, tv.tv_character, cricket.cricket_stadium, military.military_conflict, film.film_character, geography.river, film.film_festival_focus, sports.golfer, olympics.olympic_event_competition, medicine.anatomical_structure, ice_hockey.hockey_team, boats.ship_class, computer.computer, religion.religious_leader, sports.sports_position, aviation.airport, aviation.aircraft_model, medicine.drug, film.music_contributor, aviation.airline, location.jp_prefecture, cvg.cvg_genre, book.author, music.composition, amusement_parks.park, sports.sports_league_season, basketball.basketball_team, sports.sports_championship_event, music.musical_scale, music.producer, martial_arts.martial_artist, sports.tournament_event_competition, business.customer, location.uk_constituent_country, architecture.venue, location.province, spaceflight.astronaut, protected_sites.listed_site, film.director, location.citytown, meteorology.tropical_cyclone, soccer.football_player, tennis.tennis_tournament_champion, music.instrument, tv.tv_program_creator, location.us_state, metropolitan_transit.transit_system, education.educational_institution, film.writer, medicine.disease, music.composer, food.food, film.film_distributor, computer.software, theater.theater_actor, religion.religion, tennis.tennis_tournament, military.military_post, soccer.football_league_season, award.award_discipline, soccer.football_league, business.business_operation, broadcast.tv_station, cvg.cvg_platform, media_common.media_genre, architecture.structure, american_football.football_player, soccer.football_world_cup, business.consumer_company, book.magazine, medicine.medical_treatment, government.u_s_congressperson, tv.tv_genre, chess.chess_player, law.court, award.award_category, location.australian_local_government_area, sports.sports_award_type, award.recurring_competition, people.family_member, time.event, sports.sports_award_winner, tv.tv_producer, cvg.cvg_developer, music.group_member, cricket.cricket_bowler, astronomy.asteroid, cricket.cricket_player, sports.professional_sports_team, business.defunct_company, award.competition, tv.tv_series_episode, tv.tv_actor, interests.collection_category, sports.pro_athlete, medicine.drug_ingredient, meteorology.tropical_cyclone_season, book.newspaper, exhibitions.exhibition_sponsor, sports.sports_team, astronomy.celestial_object, law.invention, american_football.football_team, film.film, award.award_ceremony, location.uk_statistical_location, tennis.tennis_player, music.record_label, biology.organism_classification, tv.tv_network, book.periodical_subject, location.us_county, business.industry, royalty.chivalric_order_member, travel.accommodation, broadcast.radio_format, military.military_unit, award.award, military.military_person, computer.software_license, award.award_presenting_organization, book.periodical, government.us_president, sports.cyclist, broadcast.broadcast, sports.boxer, metropolitan_transit.transit_line, military.rank, award.hall_of_fame_inductee, education.athletics_brand, royalty.kingdom, education.educational_degree, fictional_universe.fictional_organization, book.periodical_publisher, music.genre, tv.tv_director, architecture.building, cvg.cvg_publisher, broadcast.radio_station, organization.membership_organization, government.politician, organization.organization, astronomy.constellation, american_football.football_conference, education.field_of_study, cricket.cricket_team, organization.non_profit_organization, cvg.computer_videogame, sports.sports_championship, business.product_category, music.media_format, sports.multi_event_tournament, american_football.football_coach, soccer.football_award, location.capital_of_administrative_division, sports.school_sports_team, government.legislative_session, government.election_campaign, baseball.baseball_team, geography.mountain, tv.tv_program, celebrities.celebrity, broadcast.genre, location.location, baseball.baseball_player, basketball.basketball_player, ice_hockey.hockey_player, biology.organism, music.performance_role, government.government_office_or_title, music.musical_group, soccer.football_position, basketball.basketball_position, tv.tv_writer, transportation.road, boats.ship_type, people.person, computer.operating_system, fictional_universe.fictional_character, location.country, broadcast.artist, boats.ship, internet.website, business.job_title, royalty.monarch, astronomy.star_system_body, astronomy.orbital_relationship, internet.website_owner, time.recurring_event, location.administrative_division, sports.sport, sports.sports_facility, music.artist, baseball.baseball_league, geography.body_of_water, film.actor, tv.tv_series_season, education.school, aviation.aircraft_owner, education.fraternity_sorority, music.music_video_director, music.writer, sports.sports_league_draft, royalty.noble_title, film.producer, government.election, tv.tv_personality, music.album, music.lyricist, film.film_genre, military.armed_force, government.political_party, location.in_district, people.ethnicity, location.in_state, chemistry.chemical_element, olympics.olympic_games, location.hud_county_place, comic_books.comic_book_character, basketball.basketball_conference. Provide only the chosen type(s), separated by commas if multiple, within the list in this JSON: {"answer": ["ANSWER"]}.

{"answer": ["sports.sports_position", "soccer.football_position"]}