Background: Serebro (Russian: Serebro; English translation: Silver) (Stylized as SEREBRO) is a Russian girl group formed by their manager and producer Maxim Fadeev.
Context: Polina Favorskaya (Russian: Polina Favorskaia, born 21 November 1991 in Volgograd, Russia) was the replacement of Elena Temnikova, who was introduced 5 June 2014. Favorskaya announced she was leaving the group in August 2017, but continued performing with them until the end of 2017.  Anastasia Karpova (Russian: Anastasiia Karpova, born 2 November 1984 in Balakovo, Russia) was very interested in music since her early age, but dedicated herself to ballet. She was also attending singing classes and decided to pursue her singing career. Anastasia had replaced Lizorkina, after the latter announced her departure. She first had her debut with the group on their single "Like Mary Warner". Anastasia, along with Elena and Olga had recorded their second studio album Mama Lover, making it Karpova's first full-length studio album. Karpova decided to leave the group to pursue a solo career. The song "UGAR" was her last song with the group.  Marina Lizorkina (Russian: Marina Lizorkina, born 9 June 1983 in Moscow, Russia) entered the Contemporary Art University in Moscow at the age of sixteen. She used to sing in a choir, before she became the lead singer of the group "Formula". In 2004, they released a few singles for the series Obrechennaya Stat Zvezdoy. Lizorkina was the last to join Serebro, after she saw an Internet announcement.  Dasha Shashina (Russian: Dasha Shashina, born 1 September 1990 in Nizhny Novgorod, Russia) is the replacement of Anastasia Karpova, who began performing with the group in October 2013. Shashina left the group in March 2016 due to serious health issues and having to undergo two surgeries.  Elena Temnikova (Russian: Elena Temnikova, born 18 April 1985 in Kurgan, Russia) came to media prominence as a contestant on the Channel One talent show Star Factory in 2003. She was spotted by Maxim Fadeev, the main producer of Star Factory, and signed to his recording company Monolit Records. Although Temnikova released two disco singles, "Begi" and "Taina", she did not continue her solo career and joined Serebro instead. She married co-member of Star Factory Alexey Semenov; the two separated in 2007, before a settlement for divorce. She then had a brief conflict with Fedeev, after dating and subsequently leaving his brother. She currently resides in Moscow, Russia. On 15 May 2014 the official Serebro website reported that Elena had left the group due to ill health. She was replaced with Karpova who had left the band earlier the previous year until they find a replacement.
Question: Who else had been members of the group?
Answer: Marina Lizorkina

Background: Steeleye Span are an English folk rock band formed in 1969. Still active today, along with Fairport Convention, they are amongst the best known acts of the British folk revival, and were among the most commercially successful, thanks to their hit singles "Gaudete" and "All Around My Hat". They had four Top 40 albums and achieved a certified gold record with sales of "All Around My Hat". Throughout their history, Steeleye Span have seen many personnel changes.
Context: For much of the 1980s, the members of the band tended to focus on outside projects of various sorts. Johnson opened a restaurant and then studied for a degree in psychology at the University of Hertfordshire. Pegrum ran a music studio. Prior and Kemp devoted much energy to their own band (The Maddy Prior Band; see Maddy Prior (solo albums)), recording 4 albums, and also had children together. The result was that the band's output dropped sharply, producing only three albums over the space of ten years (including a concert album), although the band continued touring.  After a quiet spell, the group's 12th studio album (and first without Tim Hart) Back in Line was released on the Flutterby label in 1986. With no "relaunch" as such, the band retained a low profile, although their recording of "Blackleg Miner" (previously an obscure song from an 1844 strike) became a political anthem for the NUM during the miners' strike of 1984-5 and was used to intimidate working miners. Steeleye Span continued to perform the song live and included a different version on their 1986 release Back in Line, which put greater stress on the line that threatens death against blacklegs.  In 1989, two long-term members departed. One was bassist Rick Kemp, who needed to recover from a serious shoulder injury, exacerbated by playing bass on stage. His eventual replacement (after two tours, each with a different bassist) was Tim Harries, who was brought in less than two weeks before the band was scheduled to start a tour. A friend of Pegrum's, Harries was a self-taught rock bassist, as well as a classically trained pianist and double bassist. With Harries on board, Steeleye released Tempted and Tried (1989), an album that formed the basis for their live set for many years to come.  Not long after recording Tempted, drummer Nigel Pegrum emigrated to Australia for personal relationship reasons. He was replaced by eccentric drummer Liam Genockey of Gillan, easily identified by his long, plaited beard. He and Knight were simultaneously members of "Moire Music", a free-jazz band with a classical flavour, led by Trevor Watts. Unlike Pegrum, who employed a traditional rock drumming style, Genockey favoured a more varied drumming style, influenced by both Irish and African drumming, in which he hit, brushed, and rubbed the various surfaces of his drums and cymbals, creating a more varied range of sounds. Consequently, when the band embarked on their 20th Anniversary Tour, they did so with a totally new rhythm section.  Both Harries and Genockey were interested in experimenting with the band's sound, and they helped re-energise the other members' interest in Steeleye. The band began reworking some of their earlier material, seeking new approaches to traditional favourites. For example, Johnson experimented with an arrangement of "Tam Lin" that involved a heavy Bulgarian influence, inspired by Eastern European versions of the Tam Lin legend. In 1992, the band released Tonight's the Night...Live, which demonstrates some of this new energy and direction. The band continued to tour the UK every year, and frequently toured overseas as well.
Question: What were the wilderness years?
Answer: