question: Missin U has a sample of which song by an American jazz rock band founded by Walter Becker and Donald Fagen?
answer: "Third World Man"
context: Title: Steely Dan
  Passage: Steely Dan is an American jazz rock band founded by core members Walter Becker (guitars, backing vocals) and Donald Fagen (keyboards, lead vocals) in 1972.  Blending elements of jazz, R&B, traditional pop, and sophisticated studio production with ironic and cryptic lyrics, the band enjoyed critical and commercial success starting from the early 1970s until breaking up in 1981. " Rolling Stone" has called them "the perfect musical antiheroes for the Seventies".  Steely Dan reunited in 1993 and has toured steadily ever since.  Becker died on September 3, 2017, leaving Fagen as the only official member.
  Title: Aja (song)
  Passage: "Aja" is a jazz rock song by the American rock band Steely Dan from the album of the same name, released in 1977.  It was composed by Walter Becker and Donald Fagen, the band's two members, who respectively play guitar and synthesizer on the track, with various studio musicians playing the other parts.  Production duties were handled by Gary Katz; ABC Records released the album.
  Title: Hey Nineteen
  Passage: "Hey Nineteen" is a song by American jazz rock band Steely Dan, written by members Walter Becker and Donald Fagen, and released on their 1980 album "Gaucho".
  Title: The New York Rock and Soul Revue
  Passage: The New York Rock and Soul Revue was a musical project which evolved from a series of concerts and musical shows produced by Libby Titus (future wife of Donald Fagen) that lasted from 1989 to 1992.  The project was led by Donald Fagen (soloist and co-founder of Steely Dan) and included Phoebe Snow, Michael McDonald, Boz Scaggs, Eddie Brigati (formerly of The Rascals), David Brigati (also of The Rascals), the late Charles Brown, and Walter Becker (soloist and co-founder of Steely Dan).  The project also featured Jeff Young and the Youngsters, the late saxophonist Cornelius Bumpus (who had formerly worked with Steely Dan, the Doobie Brothers and Boz Scaggs), and the late violinist Mindy Jostyn.  The project is perhaps best known for its 1991 live release entitled "", a compilation of material recorded live at New York City's Beacon Theater.
  Title: Missin U
  Passage: "Missin U" is a song by American singer Usher.  It was released by RCA Records on August 26, 2016 on for online streaming and for digital download.  The record is taken from his eighth studio album, "Hard II Love".  The song was written by Usher, Robert Calloway, Walter Becker, Donald Fagen, Autoro Whitfield, Faheem Mardre, Andrew Wansel, and Warren Felder, while production was handled by the latter two.  The song features a sample of Steely Dan's song "Third World Man" from their 1980 album "Gaucho".  The song impacted urban contemporary radio as the album's third single on September 13, 2016
  Title: Aja (album)
  Passage: Aja ( , pronounced "Asia") is the sixth album by the jazz rock band Steely Dan.  Originally released in 1977 on ABC Records, it became the group's best-selling album.  The credits for "Aja" list nearly 40 musicians, as band leaders Donald Fagen and Walter Becker pushed Steely Dan further into experimenting with different combinations of session players.
citations: Missin U Steely Dan