Question: What kind of group does U2 discography and Sunday Bloody Sunday have in common?

Related documents: [0]  [DOC] "Sunday Bloody Sunday" is a song by Irish rock band U2. It is the opening track from their 1983 album "War" and was released as the album's third single on 11 March 1983 in Germany and the Netherlands. "Sunday Bloody Sunday" is noted for its militaristic drumbeat, harsh guitar, and melodic harmonies. One of U2's most overtly political songs, its lyrics describe the horror felt by an observer of the Troubles in Northern Ireland, mainly focusing on the Bloody Sunday incident in Derry where British troops shot and killed unarmed civil rights protesters and bystanders. At the same time, the lyrics reject hate and revenge as a response, as noted in the line "There's many lost, but tell me who has won." Along with "New Year's Day," the song helped U2 reach a wider listening audience. It was generally well received by critics on the album's release. [END] 
[1]  [DOC] The discography of Irish rock band U2 consists of thirteen studio albums, one live album, three compilation albums, sixty-seven singles, and eight extended plays (EPs). The band formed at Mount Temple Comprehensive School in 1976 as teenagers. In 1979, the group issued their first release, the EP "U2-3", which sold well in Ireland. The following year, the group signed to Island Records and released their debut album, "Boy". It reached number 52 in the UK and number 63 in the US. They followed it up with the release of "October" (1981) and "War" (1983). "War" was a commercial success, becoming the band's first number-one album in the UK while reaching number 12 in the US. The album yielded the singles "Sunday Bloody Sunday" and "New Year's Day" and have since become among the band's most popular songs. On the subsequent War Tour, the group recorded the live album "Under a Blood Red Sky" and concert film "", both of which sold well and helped establish them globally as a live act. [END]  
Answer: band
band