question: Who is the spouse of the performer of song Pump-Pump?
context: [["Adib Kheir", ["Adib Kheir was a leading Syrian nationalist of the 1920s.", "He was the owner of the Librairie Universelle in Damascus.", "His granddaughter is the spouse of Manaf Tlass."]], ["Pump-Pump", ["\"For Snoop Doggy Dogg's song named *Pump Pump\", see here\"\n\"Pump-Pump\" was the Finnish entry in the Eurovision Song Contest 1976, performed in English by Fredi & Yst\u00e4v\u00e4t (Fredi & Friends).", "This was Fredi's second Eurovision entry, he had made his debut in Vienna, Austria in 1967 with \"Varjoon - suojaan\", placing 12th in a field of 17.", "The song was performed eleventh on the night (following Greece's Mariza Koch with \"Panayia Mou, Panayia Mou\" and preceding Spain's Braulio with \"Sobran las palabras\").", "At the close of voting, it had received 44 points, placing 11th in a field of 18.", "The original Finnish language version of the song was called \"Pump Pump\" and the title was simply kept for the English translation.", "Fredi however also recorded the song in German, and it was then retitled \"Bump bump (Schon wieder macht mein Herz...)\".", "It was succeeded as Finnish representative at the 1977 Contest by Monica Aspelund with \"Lapponia\"."]], ["Princess Auguste of Bavaria (1875\u20131964)", ["Princess Auguste of Bavaria( 28 April 1877 \u2013 25 June 1964) was a member of the Bavarian Royal House of Wittelsbach and the spouse of Archduke Joseph August of Austria."]], ["Gertrude of Bavaria", ["Gertrude of Saxony and Bavaria( 1152/55\u20131197) was Duchess of Swabia as the spouse of Duke Frederick IV, and Queen of Denmark as the spouse of King Canute VI."]], ["Billy Milano", ["Billy Milano is a Bronx- born heavy metal musician now based in Austin, Texas.", "He is the singer and- occasionally- guitarist and bassist of crossover thrash band M.O.D., and he was also the singer of its predecessor, Stormtroopers of Death.", "He was also the singer of United Forces, which also featured his Stormtroopers of Death bandmate Dan Lilker."]], ["Maria Teresa, Grand Duchess of Luxembourg", ["Maria Teresa, Grand Duchess of Luxembourg( born Mar\u00eda Teresa Mestre y Batista; on 22 March 1956), is the spouse of Grand Duke Henri."]], ["Marie-Louise Coidavid", ["Marie Louise Coidavid( 1778 \u2013 March 11, 1851), was the Queen of the Kingdom of Haiti 1811 \u2013 20 as the spouse of Henri I of Haiti."]], ["Mehdi Abrishamchi", ["Mehdi Abrishamchi is an Iranian People's Mujahedin of Iran( MEK) politician who has been described as\" the right hand man of Massoud Rajavi\".", "He is the former spouse of the group's current leader, Maryam Rajavi, whom he divorced so that she could become the spouse of Massoud Rajavi."]], ["Sophia Magdalena of Denmark", ["Sophia Magdalena of Denmark (3 July 1746 \u2013 21 August 1813) was Queen of Sweden as the spouse of King Gustav III."]], ["Fredi (singer)", ["Fredi, born as Matti Kalevi Siitonen (23 July 1942 in Mikkeli, Finland), is a Finnish comedic actor, musician, singer/songwriter and television presenter.", "Domestically he is best known as a founding member of the comedic variety ensemble Kivikasvot.", "Siitonen chose his stage name, Fredi, after a TV cartoon character, Fred Flintstone from \"The Flintstones\".", "In 1965 he recorded his first song, \"Roskisdyykkarin Balladi\" as Folk Fredi.", "A year later he dropped the Folk name and was simply known as Fredi.", "Internationally he represented his country at the Eurovision Song Contest 1967 in Vienna, Austria with the song \"Varjoon - suojaanTo the Shadow \u2013", "To the Safety\"), which received three points and finished 12th of 17 entries.", "He is also the husband of the former mayor of Helsinki, Eva-Riitta Siitonen.", "They were married in 1969 and on November 13, 1970, Eva-Riitta gave birth to the late Hanna-Riikka Siitonen, who was a singer and actress.", "Fredi is also the stepfather of Petri, Eva-Riitta's son from a previous relationship.", "Fredi returned to Eurovision in 1976 in The Hague, Netherlands, with the group Fredi & The Friends.", "Their song \"Pump-Pump\" received 44 points, finishing 11th out of 18.", "Coincidentally, both contests in which Fredi took part were won by the United Kingdom representatives - Sandie Shaw in 1967 and Brotherhood of Man in 1976.", "In Finland Fredi has had more than 20", "Top-10 Hit singles, and achieved Diamond status with many studio albums like \"Avaa syd\u00e4mesi mulleOpen", "Your Heart to Me\") and \"RakkauslaulujaLovesongs\").", "In 1968, he did a Finnish cover of Tom Jones's \"Delilah\" as well as a beautiful cover of Procol Harum's \"Whiter Shade of Pale\", and 5 years later, did a cover of David Bowie's \"Starman\" and Elton John's \"Goodbye Yellow Brick Road\".", "In 1977, he released his first Christmas album, which contains covers of \"Silent Night\" and \"White Christmas\".", "In 1978 he released one of his most critically acclaimed albums \"T\u00e4n\u00e4\u00e4n FrediToday Fredi\").", "It contained hit singles \"Syntinen y\u00f6Night of SinEl\u00e4\u00e4 m\u00e4 sainStayin' Alive\")", "a Finnish version of the Bee Gees song and Space cover \"Magic Fly\" with the Finnish title \"Se outoa onIt's Weird\").", "The album reached over Gold status peaking # 5 in the Finnish Albums Chart.", "Fredi has sold over 177,000 certified records, which places him among the 50 best-selling male soloists in Finland.", "In 2010, Fredi started presenting his own talk show, \"Fredin Vieraana\" or Fredi Visits.", "His shows included songs at the opening and closing of each episode, as well as Fredi interviewing Finnish musicians and singers such as Katri Helena and Titta Jokinen.", "Today he is still presenting his shows live in Finland."]]]
supporting_facts: [["Pump-Pump", 0], ["Fredi (singer)", 7]]
evidences: [["Pump-Pump", "performer", "Fredi"], ["Fredi", "spouse", "Eva-Riitta Siitonen"]]
answer: Eva-Riitta Siitonen