Question: When the two Coldplay songs U.F.O and Princess of China were written, what factor did they have in common?

<P0-S0> Mi Saw U (Burmese: မိစောဦး , ] ; also known as Min Saw U) was a Pagan princess, who was queen of two kings, Kyawswa of Pagan and Thihathu of Pinya, and mother of two kings, Uzana I of Pinya and Kyawswa I of Pinya. <P0-S1>  Saw U was a daughter of Narathihapate, the last sovereign king of Pagan. <P0-S2>  Married to her half-brother Kyawswa, Saw U was pregnant with Kyawswa's child (Uzana) in December 1297 when she was seized by Thihathu who had just overthrown Kyawswa. <P0-S3>  Thihathu raised Uzana as his own child and later selected him as heir apparent. <P0-S4>  Saw U also gave birth to Thihathu's child, also named Kyawswa. <P0-S5>  Both Uzana and Kyawswa went on to become kings of Pinya. <P0-S6>  Her youngest son Nawrahta defected to the Sagaing Kingdom c. 1349 after a disagreement with his brother Kyawswa. <SEP> <P1-S0> The discography of South Korean-born Australian recording artist Dami Im consists of three studio albums, two extended plays, ten singles, two album appearances, and four music videos. Im began her music career as a gospel singer in Korea and independently released her debut studio album, "Dream", in 2010. <P1-S1>  She was the winner on the fifth season of "The X Factor Australia" in 2013, and subsequently received a contract with Sony Music Australia. <P1-S2>  Im released her self-titled second studio album in November 2013, which features selected songs she performed as part of the top twelve on "The X Factor". <P1-S3>  The album debuted at number one on the ARIA Albums Chart and was certified platinum by the Australian Recording Industry Association (ARIA), denoting shipments of 70,000 copies. <P1-S4>  Additionally, the album also included Im's debut single "Alive", which topped the ARIA Singles Chart and was certified platinum. <P1-S5>  She became the first "X Factor Australia" contestant to follow up a number one single with a number one album on the ARIA Charts. <SEP> <P2-S0> "U.F.O." is a song by British rock band Coldplay. <P2-S1>  It was written by all four members of the band for their fifth studio album, "Mylo Xyloto". <P2-S2>  The album's opening track, "Mylo Xyloto" and "A Hopeful Transmission" are based on the chords from the second half of this song. <P2-S3>  After the song ends, the track includes a short instrumental section (reminiscent of "Prospekt's March/Poppyfields") that segues into the following track, "Princess of China". <P2-S4>  The track also features samples from a sample of Sigur Rós' "Takk...". <SEP> <P3-S0> "Princess of China" is a duet recorded by British rock band Coldplay and Barbadian singer Rihanna for Coldplay's fifth studio album "Mylo Xyloto". <P3-S1>  The song was written by band members Guy Berryman, Jonny Buckland, Will Champion, and Chris Martin, along with Brian Eno, and is influenced by the music genres of electronic rock, electropop and R&B. <P3-S2>  The song was released as the fourth single from "Mylo Xyloto" and was sent to US Mainstream radio on 14 February 2012. <P3-S3>  It was later released as a digital download on 13 April 2012. <P3-S4>  A companion EP to the single, featuring an acoustic version of the song, was released on 1 June 2012.