london underground
lines
Table:
Name
Map colour
First operated
Type
Length
No. Sta
Current Stock
Future Stock
Trips per annum (×1000)
Avg. trips per mile (×1000)

Bakerloo line
Brown
1906
Deep Tube
23.2km 14.5 mi
25
1972 Stock
N/A
111,136
7,665

Central line
Red
1900
Deep Tube
74 .0 km 46 .0 mi
49
1992 Stock
N/A
260,916
5,672

Circle line
Yellow
1871
Sub surface
27.2km 17 .0 mi
36
C Stock S Stock
S Stock (Currently replacing C Stock)
114,609
4,716

District line
Green
1868
Sub surface
64 .0 km 40 .0 mi
60
C Stock and D78 Stock
S Stock from 2014
208,317
5,208

Hammersmith & City line
Pink
1864
Sub surface
25.5km 15.9 mi
29
C Stock S Stock
S Stock (Currently replacing C Stock)
114,609
4,716

Jubilee line
Silver
1979
Deep Tube
36.2km 22.5 mi
27
1996 Stock
N/A
213,554
9,491

Metropolitan line
Purple
1863
Sub surface
66.7km 41.5 mi
34
S Stock
N/A
66,779
1,609

Northern line
Black
1890
Deep Tube
58 .0 km 36 .0 mi
50
1995 Stock
N/A
252,310
7,009

Piccadilly line
Dark Blue
1906
Deep Tube
71 .0 km 44.3 mi
53
1973 Stock
N/A
210,169
4,744

Victoria line
Light Blue
1968
Deep Tube
21 .0 km 13.3 mi
16
2009 Stock
N/A
199,988
15,093

Waterloo & City line
Turquoise
1898
Deep Tube
2.5km 1.5 mi
2
1992 Stock
N/A
15,892
10,595

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

{"answer": ["rail.locomotive_class"]}