11 de marzo de 2004
{'<entity_0>': 'bombings against the Cercanías commuter train system of Madrid, Spain', '<entity_1>': 'terrorist attack', '<entity_2>': '11 March 2004', '<entity_3>': 'Madrid', '<entity_4>': 'Atocha Railway Station', '<entity_5>': 'Spain', '<entity_6>': '11 de marzo de 2004'}
[['11 de marzo de 2004', 'instance of', 'terrorist attack'], ['11 de marzo de 2004', 'country', 'Spain'], ['11 de marzo de 2004', 'location', 'Madrid'], ['11 de marzo de 2004', 'point in time', '11 March 2004'], ['11 de marzo de 2004', 'start time', '11 March 2004'], ['11 de marzo de 2004', 'end time', '11 March 2004'], ['11 de marzo de 2004', 'location', 'Atocha Railway Station'], ['11 de marzo de 2004', 'location', 'Spain'], ['11 de marzo de 2004', 'description', 'bombings against the Cercanías commuter train system of Madrid, Spain']]
The 2004 <entity_3> train bombings (also known in <entity_5> as <entity_6>) were nearly simultaneous, coordinated <entity_0>, on the morning of <entity_2> – three days before <entity_5>'s general elections. The bombings constituted the deadliest <entity_1> carried out in the history of <entity_5> and the deadliest in Europe since the 1988 bombing of Pan Am Flight 103 over Lockerbie, Scotland. During the peak of <entity_3> rush hour on the morning of Thursday, <entity_2>, ten explosions occurred aboard four commuter trains (cercanías). All the affected trains were traveling on the same line and in the same direction between Alcalá de Henares and the <entity_4> station in <entity_3>. The total number of victims was higher than in any other <entity_1> in <entity_5>, far surpassing the 21 killed and 40 wounded from a 1987 bombing at a Hipercor chain supermarket in Barcelona. On 27 May 2005, the Prüm Convention, implementing inter alia the principle of availability which began to be discussed after the <entity_3> bombings, was signed by Germany, <entity_5>, France, Luxembourg, Netherlands, Austria, and Belgium. On 4 January 2007, El País reported that Algerian Ouhnane Daoud, who is considered to be the mastermind of the <entity_6> bombings, has been searching for ways to return to <entity_5> to prepare further attacks, though this has not been confirmed. Although ETA has a history of mounting bomb attacks in <entity_3>, the <entity_2> attacks exceeded any attack previously attempted by a European organisation. Defenders of the claims that ETA participated in some form in the <entity_2> attacks have affirmed that there is circumstantial evidence linking the Islamic extremists with two ETA members who were detained while driving the outskirts of <entity_3> in a van containing 500 kg of explosives 11 days before the train bombings. At the time of the <entity_3> bombings, <entity_5> was well equipped with internal security structures that were, for the most part, effective in the fight against terrorism.
['terrorist attack', 'mass murder']