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: which barcelona airport is closest to the port? 
Knowledge Triplets: m.051szgh, travel.travel_destination_monthly_climate.travel_destination, Barcelona
University of Barcelona, location.location.containedby, Spain
Province of Barcelona, location.location.contains, Castellbisbal
m.051r6wb, travel.transportation.transport_terminus, Barcelona Sants railway station
m.09y0979, common.webpage.topic, Barcelona
Plaça d'Espanya, Barcelona, location.location.containedby, Barcelona
m.051r6wb, travel.transportation.transport_terminus, Barcelona França railway station
Barcelona–El Prat Airport, location.location.containedby, Spain
University of Barcelona, location.location.containedby, Barcelona
Esplugues de Llobregat, location.location.containedby, Barcelona
Barcelona, common.topic.webpage, m.06wgpv0
Province of Barcelona, location.location.contains, Berga
Province of Barcelona, location.location.contains, Sant Cugat del Vallès
La Rambla, Barcelona, location.statistical_region.population, g.12460cpv5
Province of Barcelona, location.location.contains, Santa Coloma de Gramenet
Province of Barcelona, location.location.contains, Vilanova de Sau
Barcelona, base.biblioness.bibs_location.country, Spain
Province of Barcelona, location.location.contains, Caldes de Montbui
Sant Feliu de Codines, location.location.containedby, Province of Barcelona
Barcelona, film.film.music, Mark Suozzo
Caldes d'Estrac, location.location.containedby, Province of Barcelona
Palau de la Música Catalana, location.location.containedby, Barcelona
Barcelona, location.location.time_zones, Central European Time Zone
Gothic Quarter, Barcelona, common.topic.article, m.03q89l
m.051szjw, common.webpage.topic, Barcelona
Sant Pol de Mar, location.location.containedby, Province of Barcelona
m.06wgpv0, common.webpage.topic, Barcelona
m.09yk8mv, common.webpage.topic, Barcelona
Province of Barcelona, location.location.contains, Bages
Casa Milà, location.location.containedby, Barcelona
Province of Barcelona, location.location.contains, Sant Celoni
FC Barcelona Bàsquet, common.topic.webpage, m.0fpsg28
Sushifresh, organization.organization.geographic_scope, Barcelona
m.0b6rvk0, common.webpage.topic, Barcelona
Province of Barcelona, location.location.contains, Arenys de Munt
Palau Blaugrana, location.location.containedby, Barcelona
PortAventura, travel.tourist_attraction.near_travel_destination, Catalonia
Barcelona, location.statistical_region.population, m.0k53038
La Rambla, Barcelona, location.statistical_region.population, m.0khzb0q
m.051szd7, travel.travel_destination_monthly_climate.travel_destination, Barcelona
m.02h7hws, aviation.airline_airport_presence.airport, Barcelona–El Prat Airport
Province of Barcelona, location.location.contains, Mollet del Vallès
Barcelona–El Prat Airport, common.topic.image, Aeroport de Barcelona 1
Barcelona, common.topic.webpage, m.09y0979
Sant Pere de Ribes, location.location.containedby, Province of Barcelona
Province of Barcelona, location.location.contains, Abrera
m.04z1zyf, location.mailing_address.citytown, Barcelona
Barcelona, base.aubreymaturin.place.mentions, m.05pwgj7
La Rambla, Barcelona, location.statistical_region.population, m.0klqybm
Sant Andreu de Llavaneres, location.location.containedby, Province of Barcelona
FC Barcelona, freebase.valuenotation.is_reviewed, Official website
Province of Barcelona, location.location.contains, Cabrera de Mar
Barcelona, travel.travel_destination.climate, m.051szcd
Province of Barcelona, location.location.contains, Sant Andreu de Llavaneres
Catalonia, travel.travel_destination.tourist_attractions, PortAventura
m.0117878d, location.mailing_address.citytown, Barcelona
Plaça d'Espanya, Barcelona, common.topic.article, m.02rm8r3
The Passenger, film.film.featured_film_locations, Barcelona
m.04yv988, common.webpage.topic, Barcelona–El Prat Airport
La Rambla, Barcelona, common.topic.image, Busy-las-ramblas
m.051r6vn, travel.transportation.travel_destination, Barcelona
Province of Barcelona, location.location.containedby, Catalonia
Barcelona, common.topic.webpage, m.051szjw
Hamilcar Barca, symbols.name_source.namesakes, Barcelona
m.04hdfr3, location.mailing_address.citytown, Barcelona
Barcelona–El Prat Airport, aviation.airport.focus_city_for, Air Europa
La Rambla, Barcelona, common.topic.notable_for, g.125dm_y55
Barcelona, location.location.containedby, Province of Barcelona
Mollet del Vallès, location.location.containedby, Province of Barcelona
Barcelona intro, common.image.size, m.063cyqs
m.051r6vn, travel.transportation.transport_terminus, Barcelona–El Prat Airport
Barcelona–El Prat Airport, aviation.airport.hub_for, Iberia
Casa Milà, travel.tourist_attraction.near_travel_destination, Barcelona
Province of Barcelona, location.location.contains, Ripollet
Ryanair, aviation.airline.hubs, Barcelona–El Prat Airport
Barcelona, travel.travel_destination.climate, m.051szfc
Redcorus, organization.organization.locations, Barcelona
PortAventura, location.location.containedby, Catalonia
Barcelona–El Prat Airport, common.topic.article, m.013q80
Cabrera de Mar, location.location.containedby, Province of Barcelona
m.0n7wv4r, award.award_honor.honored_for, Barcelona
Province of Barcelona, location.location.contains, El Papiol
Casa Vicens, travel.tourist_attraction.near_travel_destination, Barcelona
Barcelona, travel.travel_destination.tourist_attractions, Casa Milà
Museu Nacional d'Art de Catalunya, common.topic.image, 050529 Barcelona 135
Barcelona–El Prat Airport, aviation.airport.focus_city_for, Jet4you
Parc del Laberint d'Horta, travel.tourist_attraction.near_travel_destination, Barcelona
Barcelona, travel.travel_destination.tour_operators, Adventures by Disney - 7-Night Mediterranean Magic Cruise
Besòs, location.location.containedby, Barcelona
Barcelona, film.film.featured_film_locations, Barcelona
m.09x2d5n, common.webpage.topic, Barcelona
Province of Barcelona, location.location.contains, El Prat de Llobregat
Barcelona, travel.travel_destination.tourist_attractions, Casa Vicens
Province of Barcelona, location.location.contains, Espacio Movistar
Barcelona–El Prat Airport, aviation.airport.serves, El Prat de Llobregat
Design Museum of Barcelona, location.location.geolocation, m.011dyf9z
Gothic Quarter, Barcelona, travel.travel_destination.tour_operators, Adventures by Disney - Barcelona Pre-Cruise Stay
Vilanova de Sau, location.location.containedby, Province of Barcelona
FC Barcelona Bàsquet, common.topic.article, m.0953q9
Barcelona Museum of Contemporary Art, travel.tourist_attraction.near_travel_destination, Barcelona
Province of Barcelona, location.location.contains, Alella
m.0j9vdn6, common.webpage.topic, Design Museum of Barcelona
Plaça d'Espanya, Barcelona, common.topic.notable_for, g.1259rjx2n
La Rambla, Barcelona, travel.tourist_attraction.near_travel_destination, Barcelona
Worldreader, organization.organization.geographic_scope, Barcelona
La Rambla, Barcelona, common.topic.image, La Rambla Sign Barcelona Catalonia
Province of Barcelona, location.location.contains, Sant Feliu de Llobregat
Barcelona, travel.travel_destination.how_to_get_here, m.051r6vy
Barcelona–El Prat Airport, common.topic.notable_types, Airport
Sant Celoni, location.location.containedby, Province of Barcelona
m.011tyc24, common.phone_number.service_location, Barcelona
Barcelona, travel.travel_destination.tour_operators, Adventures by Disney
Barcelona, travel.travel_destination.tourist_attractions, Museu Nacional d'Art de Catalunya
Province of Barcelona, common.topic.article, m.012406
Gothic Quarter, Barcelona, location.location.contains, Plaça Sant Jaume
m.02_7m73, location.mailing_address.citytown, Barcelona
Province of Barcelona, location.location.contains, Garraf
Adventures by Disney - Barcelona Pre-Cruise Stay, travel.tour_operator.travel_destinations, Gothic Quarter, Barcelona
Barcelona, common.topic.webpage, m.09wy070
Montjuïc Cemetery, travel.tourist_attraction.near_travel_destination, Barcelona
Museu Nacional d'Art de Catalunya, travel.tourist_attraction.near_travel_destination, Barcelona
Barcelona, location.location.geolocation, m.02nnkjz
Barcelona, travel.travel_destination.tourist_attractions, Tibidabo
FC Barcelona Bàsquet, common.topic.notable_for, g.1259ftgc4
Province of Barcelona, location.location.contains, Vallès Oriental
Province of Barcelona, location.location.contains, Barberà del Vallès
Barcelona, travel.travel_destination.tour_operators, Adventures by Disney - Barcelona Pre-Cruise Stay
Sant Adrià de Besòs, location.location.containedby, Province of Barcelona
Majorca, travel.travel_destination.tour_operators, Adventures by Disney - Barcelona Pre-Cruise Stay
Cervelló, location.location.containedby, Province of Barcelona
Province of Barcelona, location.location.contains, Sant Pere de Ribes
Camp Nou, travel.tourist_attraction.near_travel_destination, Barcelona
Sant Iscle de Vallalta, location.location.containedby, Province of Barcelona
Barcelona, location.location.nearby_airports, Barcelona–El Prat Airport
La Rambla, Barcelona, location.location.containedby, Spain
Barcelona, common.topic.image, Barcelona
Cursa de Bombers, travel.tourist_attraction.near_travel_destination, Barcelona
Sant Vicenç de Montalt, location.location.containedby, Province of Barcelona
Barcelona–El Prat Airport, aviation.airport.hub_for, Let's Fly
Barcelona, location.citytown.postal_codes, 08021
Barcelona, travel.travel_destination.tourist_attractions, Cursa de Bombers
Barcelona–El Prat Airport, aviation.airport.airlines, m.02h7hws
Province of Barcelona, location.location.contains, Design Museum of Barcelona
BCN01 edit1, common.image.appears_in_topic_gallery, Barcelona
Vallgorguina, location.location.containedby, Province of Barcelona
Catalonia, base.aareas.schema.administrative_area.capital, Barcelona
Arc de Triomf, location.location.containedby, Barcelona
Barcelona, travel.travel_destination.climate, m.051szcp
Province of Barcelona, location.location.contains, Sant Iscle de Vallalta
Province of Barcelona, location.location.contains, Gavà
Vilafranca del Penedès, location.location.containedby, Province of Barcelona
Province of Barcelona, location.location.geolocation, m.02_h1z6
Barcelona, travel.travel_destination.tour_operators, Adventures by Disney - Italy: Tuscany
Barcelona, travel.travel_destination.how_to_get_here, m.051r6vn
L'Hospitalet de Llobregat, location.location.containedby, Province of Barcelona
m.09w_8l3, common.webpage.topic, Barcelona
Sant Esteve Sesrovires, location.location.containedby, Province of Barcelona
Barcelona, location.capital_of_administrative_division.capital_of, m.0jvvksh
Barcelona Sants railway station, travel.transport_terminus.travel_destinations_served, m.051r6wb
Barcelona, common.topic.webpage, m.093_qk1
Molins de Rei, location.location.containedby, Province of Barcelona
Barcelona, travel.travel_destination.local_transportation, Barcelona Metro
Barcelona Metro, common.topic.article, m.02m527
La Rambla, Barcelona, location.statistical_region.population, m.0khzb40
Barcelona França railway station, travel.transport_terminus.travel_destinations_served, m.051r6wb
Province of Barcelona, location.location.contains, Vallgorguina
Barcelona, film.film.rating, PG-13 (USA)
m.03ldyls, common.webpage.topic, FC Barcelona Bàsquet
Barcelona, travel.travel_destination.climate, m.051szg6
Barcelona, common.topic.notable_for, g.12564bp7r
m.051szcp, travel.travel_destination_monthly_climate.travel_destination, Barcelona
Barcelona, common.topic.webpage, m.094h6_b
m.09x0hct, common.webpage.topic, Barcelona
Barcelona–El Prat Airport, travel.transport_terminus.travel_destinations_served, m.051r6vn
Plaça d'Espanya, Barcelona, travel.tourist_attraction.near_travel_destination, Barcelona
Barcelona, travel.travel_destination.climate, m.051szdt
Province of Barcelona, location.location.contains, Barcelonès
Barcelonès, location.es_comarca.capital, Barcelona
Tibidabo, location.location.containedby, Barcelona
Province of Barcelona, location.location.contains, Sant Feliu de Codines
m.0652g2z, base.popstra.vacation_choice.location, Province of Barcelona
Corbera de Llobregat, location.location.containedby, Province of Barcelona
Province of Barcelona, location.location.contains, Osona
Montcada i Reixac, location.location.containedby, Province of Barcelona
Arenys de Munt, location.location.containedby, Province of Barcelona
m.051szdj, travel.travel_destination_monthly_climate.travel_destination, Barcelona
Barcelona en Comú, organization.organization.geographic_scope, Catalonia
Barcelona, travel.travel_destination.tourist_attractions, Sagrada Família
m.0gz37yx, common.webpage.topic, Barcelona–El Prat Airport
Barcelona–El Prat Airport, common.topic.image, Interior view of the airport
Barcelona, common.topic.image, BCN01 edit1
Barcelona, common.topic.webpage, m.09x0hct
Barcelona, film.film.edited_by, Christopher Tellefsen
Barcelona–El Prat Airport, aviation.airport.focus_city_for, Iberia
Barcelona, common.topic.article, m.01f6d
La Rambla, Barcelona, location.statistical_region.population, m.0khzb0h
Casa Vicens, location.location.containedby, Barcelona
m.04hd7fm, location.mailing_address.citytown, Barcelona
m.051shf2, travel.transportation.travel_destination, Barcelona
Barcelona França railway station, location.location.containedby, Spain
Province of Barcelona, location.location.contains, Cerdanyola del Vallès
m.09wy070, common.webpage.topic, Barcelona
Barcelona–El Prat Airport, aviation.airport.serves, Adventures by Disney - Italy: Tuscany
Parc del Laberint d'Horta, location.location.containedby, Barcelona
Barcelona, symbols.namesake.named_after, Hamilcar Barca
Muelle de Barcelona, travel.transport_terminus.travel_destinations_served, m.051shf2
Santa Coloma de Gramenet, location.location.containedby, Province of Barcelona
Barcelona, travel.travel_destination.climate, m.051szfn
Olesa de Montserrat, location.location.containedby, Province of Barcelona
Barcelona, travel.travel_destination.climate, m.051szfy
Barcelona Metro, common.topic.notable_for, g.125b9r4dz
Province of Barcelona, location.location.contains, Barcelona
m.051r6vy, travel.transportation.transport_operator, Barcelona Nord
Barcelona en Comú, organization.organization.geographic_scope, Spain
Barcelona, common.topic.webpage, m.094m4d6
La Rambla, Barcelona, common.topic.image, Florist on La Rambla, May 2005
Barcelona, common.topic.webpage, m.09yk8mv
Province of Barcelona, location.location.contains, Cornellà de Llobregat
La Rambla, Barcelona, location.location.containedby, Barcelona
m.0648br5, location.mailing_address.citytown, Barcelona
Sagrada Família, location.location.containedby, Barcelona
Barcelona Metro, common.topic.image, L2 9000
Barcelona Nord, travel.transport_operator.travel_destinations_served, m.051r6vy
m.051szcz, travel.travel_destination_monthly_climate.travel_destination, Barcelona
Barcelona–El Prat Airport, common.topic.webpage, m.04yv988
Barcelona, travel.travel_destination.tourist_attractions, Montserrat
Caldes de Montbui, location.location.containedby, Province of Barcelona
Province of Barcelona, base.biblioness.bibs_location.city, Catalonia
Barcelona, common.image.size, m.021m1bs
Province of Barcelona, common.topic.notable_for, g.12567djrf
Barcelona, travel.travel_destination.tourist_attractions, Plaça d'Espanya, Barcelona
m.09scp83, common.webpage.topic, FC Barcelona Bàsquet
Province of Barcelona, location.location.contains, Sant Esteve Sesrovires
Barcelona, location.capital_of_administrative_division.capital_of, m.0jvvkt4
Barcelona, common.topic.webpage, m.0cj67m2
La Rambla, Barcelona, common.topic.article, m.03q84v
m.051szfc, travel.travel_destination_monthly_climate.travel_destination, Barcelona
m.0jvvkt4, location.administrative_division_capital_relationship.capital, Barcelona
Barcelona, common.topic.webpage, m.09x2d5n
Mataró, location.location.containedby, Province of Barcelona
Province of Barcelona, location.location.contains, Vilafranca del Penedès
Barcelona, film.film.runtime, m.0jv0yr
La Rambla, Barcelona, location.statistical_region.population, m.0klqycc
Adventures by Disney - Barcelona Pre-Cruise Stay, travel.tour_operator.travel_destinations, Barcelona
Plaça d'Espanya, Barcelona, location.location.geolocation, m.0wn0pnf
FC Barcelona Bàsquet, common.topic.webpage, m.03ldyls
Barcelona–El Prat Airport, aviation.airport.hub_for, Vueling
Barcelona, travel.travel_destination.how_to_get_here, m.051r6wb
m.051szf2, travel.travel_destination_monthly_climate.travel_destination, Barcelona
Province of Barcelona, location.es_province.capital, Barcelona
Province of Barcelona, location.location.contains, Sant Pol de Mar
Sant Vicenç dels Horts, location.location.containedby, Province of Barcelona
Province of Barcelona, location.location.contains, Pallejà
El Papiol, location.location.containedby, Province of Barcelona
Province of Barcelona, location.location.contains, Canyelles
FC Barcelona, common.topic.subjects, Barcelona Exclusive Private Tours
Province of Barcelona, location.location.contains, Montcada i Reixac
Province of Barcelona, location.location.contains, Calaf
Province of Barcelona, location.location.contains, Granollers
Catalonia, location.location.partiallycontains, m.0wg98_8
m.012dtbjz, location.mailing_address.citytown, Barcelona
Province of Barcelona, location.location.contains, Caldes d'Estrac
Barcelona, location.capital_of_administrative_division.capital_of, m.0jvvl5d
La Rambla, Barcelona, transportation.road.major_cities, Barcelona
Poble Espanyol, location.location.containedby, Barcelona
Barcelona Nord, location.location.containedby, Spain
Plaça d'Espanya, Barcelona, common.topic.image, PlacadEspayaBarcelona
Province of Barcelona, location.location.contains, Sant Vicenç dels Horts
Province of Barcelona, location.location.contains, Cardona, Spain
Barcelona, common.topic.webpage, m.0b6rvk0
Barcelona, location.administrative_division.country, Spain
Barcelona, travel.travel_destination.tourist_attractions, Gothic Quarter, Barcelona
m.051szg6, travel.travel_destination_monthly_climate.travel_destination, Barcelona
m.0btjp73, award.ranking.item, Barcelona
Magic Fountain of Montjuïc, travel.tourist_attraction.near_travel_destination, Barcelona
Province of Barcelona, location.location.contains, Sant Vicenç de Montalt
Barcelona, common.topic.webpage, m.0b489y_
Barcelona Metro, metropolitan_transit.transit_system.agency, Transports Metropolitans de Barcelona
Barcelona Metro, common.topic.image, Catalunya metro station
Barcelona, location.location.nearby_airports, Barcelona–El Prat Airport
Gothic Quarter, Barcelona, travel.tourist_attraction.near_travel_destination, Barcelona
m.0fpsg28, common.webpage.topic, FC Barcelona Bàsquet
Montserrat, common.topic.subjects, Barcelona Exclusive Private Tours
Design Museum of Barcelona, travel.tourist_attraction.near_travel_destination, Barcelona
Barcelona, base.aubreymaturin.place.mentions, m.04ln55s
Barcelona–El Prat Airport, common.topic.webpage, m.0gz37yx
Province of Barcelona, location.location.contains, Vilassar de Dalt
Barcelona, travel.travel_destination.climate, m.051szcz
m.051shf2, travel.transportation.transport_terminus, Muelle de Barcelona
Barcelona, location.statistical_region.population, m.0b7l51q
Barcelona Metro, location.location.geolocation, m.0ztn37c
Montjuïc, travel.tourist_attraction.near_travel_destination, Barcelona
Barcelona, travel.travel_destination.climate, m.051szd7
Tibidabo, common.topic.image, Barcelona
Buried, film.film.featured_film_locations, Barcelona
Province of Barcelona, base.biblioness.bibs_location.country, Spain
m.04hcqqb, location.mailing_address.citytown, Barcelona
m.0b489y_, common.webpage.topic, Barcelona
Barcelona, film.film_location.featured_in_films, The Passenger
Province of Barcelona, location.location.contains, Sant Joan Despí
Province of Barcelona, location.location.contains, Manresa
Design Museum of Barcelona, location.location.containedby, Spain
Plaça d'Espanya, Barcelona, common.topic.image, Montjuic Placa Espanya Barcelona
Barberà del Vallès, location.location.containedby, Province of Barcelona
Cornellà de Llobregat, location.location.containedby, Province of Barcelona
Barcelona–El Prat Airport, aviation.airport.hub_for, g.1ywpnwk60
Barcelona Metro, common.topic.notable_types, Mass Transportation System
Tibidabo, travel.tourist_attraction.near_travel_destination, Barcelona
Palau Sant Jordi, location.location.containedby, Barcelona
Province of Barcelona, location.location.contains, Berguedà
Province of Barcelona, location.location.contains, Sabadell
m.051r6vy, travel.transportation.travel_destination, Barcelona
m.04ln55s, base.aubreymaturin.place_mention.place, Barcelona
Barcelona, travel.travel_destination.tourist_attractions, Montjuïc
Arc de Triomf, travel.tourist_attraction.near_travel_destination, Barcelona
La Rambla, Barcelona, location.location.geolocation, m.02_v_4k
Province of Barcelona, location.location.contains, Martorell
m.05pwgj7, base.aubreymaturin.place_mention.place, Barcelona
Barcelona, common.topic.notable_for, g.125dj14w3
Besòs, location.location.containedby, Barcelona Metro
Museu Picasso, travel.tourist_attraction.near_travel_destination, Barcelona
Barcelona, travel.travel_destination.how_to_get_here, m.051shf2
m.0cj67m2, common.webpage.topic, Barcelona
Museu Nacional d'Art de Catalunya, location.location.containedby, Barcelona
Province of Barcelona, location.location.contains, Corbera de Llobregat
La Rambla, Barcelona, common.topic.notable_types, Tourist attraction
m.094m4d6, common.webpage.topic, Barcelona
m.051szfn, travel.travel_destination_monthly_climate.travel_destination, Barcelona
Barcelona, travel.travel_destination.climate, m.051szf2
Province of Barcelona, location.location.contains, L'Hospitalet de Llobregat
Cerdanyola del Vallès, location.location.containedby, Province of Barcelona
m.04z5fp9, location.mailing_address.citytown, Barcelona
Palau de la Música Catalana, travel.tourist_attraction.near_travel_destination, Barcelona
m.051szcd, travel.travel_destination_monthly_climate.travel_destination, Barcelona
Province of Barcelona, location.location.contains, Vallès Occidental
Province of Barcelona, location.location.contains, Igualada
Barcelona, common.topic.image, Barcelona intro
Adventures by Disney, travel.tour_operator.travel_destinations, Barcelona
Province of Barcelona, location.location.contains, Molins de Rei
Province of Barcelona, location.location.contains, Sant Adrià de Besòs
Barcelona, film.film.country, United States of America
Barcelona–El Prat Airport, aviation.airport.hub_for, Clickair
Barcelona, freebase.valuenotation.is_reviewed, Official website
Camp Nou, location.location.containedby, Barcelona
Barcelonès, location.location.containedby, Province of Barcelona
Barcelona Sants railway station, location.location.containedby, Spain
m.02nxn53, location.mailing_address.citytown, Barcelona
Province of Barcelona, location.location.contains, Mataró
Sant Sadurní d'Anoia, location.location.containedby, Province of Barcelona
Province of Barcelona, location.location.containedby, Spain
Barcelona–El Prat Airport, location.location.geolocation, m.02_h61n
m.051szfy, travel.travel_destination_monthly_climate.travel_destination, Barcelona
Barcelona, travel.travel_destination.tourist_attractions, Magic Fountain of Montjuïc
m.051szdt, travel.travel_destination_monthly_climate.travel_destination, Barcelona
Park Güell, travel.tourist_attraction.near_travel_destination, Barcelona
Calaf, location.location.containedby, Province of Barcelona
Barcelona–El Prat Airport, aviation.airport.hub_for, Ryanair
Barcelona, common.topic.webpage, m.09w_8l3
Province of Barcelona, location.location.contains, Santa Susanna, Catalonia
m.0cw0b2f, film.film_cut.film, Barcelona
Plaça d'Espanya, Barcelona, common.topic.image, De venetianske tårna ved Plaça d'Espanya.
Barcelona, travel.travel_destination.tourist_attractions, Camp Nou
Park Güell, location.location.containedby, Barcelona
Barcelona, travel.travel_destination.tourist_attractions, Arc de Triomf
Adventures by Disney - Italy: Tuscany, location.location.nearby_airports, Barcelona–El Prat Airport
Barcelona Metro, metropolitan_transit.transit_system.area_served, Barcelona
Sagrada Família, travel.tourist_attraction.near_travel_destination, Barcelona
m.0h_gt9w, location.mailing_address.citytown, Barcelona
m.051r6wb, travel.transportation.travel_destination, Barcelona
Sant Cugat del Vallès, location.location.containedby, Province of Barcelona
Barcelona, film.film.runtime, m.0cw0b2f
La Rambla, Barcelona, location.statistical_region.population, m.0khzb4k
El Prat de Llobregat, location.location.nearby_airports, Barcelona–El Prat Airport
Province of Barcelona, location.location.contains, Baix Llobregat
PortAventura, location.location.containedby, Spain
Province of Barcelona, location.location.contains, Eurostars Grand Marina Hotel
Province of Barcelona, location.location.contains, Collbató
Barcelona, location.citytown.postal_codes, 08005
Gothic Quarter, Barcelona, location.location.geolocation, m.0wmcf3s
Conservatori Superior de Música del Liceu, location.location.containedby, Barcelona
m.012dtbjz, location.mailing_address.state_province_region, Province of Barcelona
Barcelona, travel.travel_destination.climate, m.051szgh
Province of Barcelona, location.location.contains, Cervelló
Province of Barcelona, location.location.contains, Vilassar de Mar
FC Barcelona Bàsquet, common.topic.webpage, m.09scp83
Barcelona, common.image.appears_in_topic_gallery, Barcelona
La Rambla, Barcelona, location.statistical_region.population, m.0klqybw
Province of Barcelona, location.location.contains, Sant Andreu de la Barca
Muelle de Barcelona, location.location.containedby, Spain
Vilassar de Mar, location.location.containedby, Province of Barcelona
Province of Barcelona, location.location.contains, Sant Just Desvern
Barcelona–El Prat Airport, aviation.airport.hub_for, Air Nostrum
m.0jv0yr, film.film_cut.film, Barcelona
Barcelona, travel.travel_destination.tourist_attractions, Museu Picasso
m.0117878d, location.mailing_address.state_province_region, Province of Barcelona
The Passenger, common.topic.image, Roof of Casa Mila, Barcelona
Barcelona, travel.travel_destination.tourist_attractions, Montjuïc Cemetery
Barcelona, common.topic.article, m.030bg9
Barcelona, travel.travel_destination.tourist_attractions, Palau de la Música Catalana
Barcelona, common.topic.subject_of, Hotel in Barcelona
Montjuïc, location.location.containedby, Barcelona
La Rambla, Barcelona, location.statistical_region.population, m.0klqybc
Barcelona–El Prat Airport, aviation.airport.serves, Barcelona
Barcelona, travel.travel_destination.climate, m.051szdj
m.093_qk1, common.webpage.topic, Barcelona
Barcelona–El Prat Airport, common.topic.webpage, m.0j2f54z
Barcelona Metro, location.location.contains, Besòs
Barcelonès, base.aareas.schema.administrative_area.capital, Barcelona
Province of Barcelona, location.location.contains, Vic
Province of Barcelona, location.location.contains, Alt Penedès
Province of Barcelona, location.location.contains, Olesa de Montserrat
Plaça d'Espanya, Barcelona, common.topic.notable_types, Tourist attraction
Barcelona, location.location.containedby, Catalonia
Vilassar de Dalt, location.location.containedby, Province of Barcelona
Barcelona, location.location.containedby, Spain
m.094h6_b, common.webpage.topic, Barcelona
Barcelona, travel.travel_destination.tourist_attractions, La Rambla, Barcelona
Province of Barcelona, common.topic.image, Provmap-barcelona
Province of Barcelona, location.location.contains, Sant Sadurní d'Anoia
El Prat de Llobregat, location.location.containedby, Province of Barcelona
Montserrat, travel.tourist_attraction.near_travel_destination, Barcelona
Province of Barcelona, location.location.contains, Borredà
Province of Barcelona, base.popstra.location.vacationers, m.0652g2z
Barcelona–El Prat Airport, aviation.airport.hub_for, Spanair
m.011tybrs, location.mailing_address.citytown, Barcelona
Barcelona–El Prat Airport, common.topic.image, Nueva T1 de Barcelona
Barcelona, travel.travel_destination.tourist_attractions, Parc del Laberint d'Horta
Barcelona, travel.travel_destination.tourist_attractions, Park Güell
Barcelona–El Prat Airport, common.topic.notable_for, g.1255mq12p
m.0j2f54z, common.webpage.topic, Barcelona–El Prat Airport
Barcelona, travel.travel_destination.tourist_attractions, Design Museum of Barcelona
Barcelona–El Prat Airport, aviation.airport.hub_for, Girjet
Sant Andreu de la Barca, location.location.containedby, Province of Barcelona
Sant Feliu de Llobregat, location.location.containedby, Province of Barcelona
Barcelona–El Prat Airport, aviation.airport.operator, ENAIRE

Answer: Barcelona–El Prat Airport