Question: Who is the mayor of the city where Leon Ichaso was born?

full_context: Document 1: Carmen Cardinali Paoa: Chilean deputy Interior Minister Rodrigo Ubilla appointed Carmen Cardinali as Governor of Easter Island in early September 2010 to replace Edmunds. Cardinali's challenges included archeological preservation of the island's heritage and revamping the tourist industry. She served as a Governor until March 2014, being replaced by Marta Raquel Hotus Tuki, appointed by president Michelle Bachelet.
Document 2: Inés Rodena: Inés Rodena (April 20, 1905 in Havana, Cuba – April 15, 1985 in Miami, USA) was a Cuban radio and television writer.
Document 3: Juan de Arguijo: Juan de Arguijo was born into a wealthy family of Seville. He mostly wrote under the pen name of Arcicio. His poetry was markedly different from the other poets of his time, known for its cerebral quality and for the poet's striving for perfectionism. His letters are also valued as literary gems, and a number of them were collected and published. Many of his sonnets were regarded by critics to be superior to those of Quevedo, Lope and Argensola.
Document 4: Marie Atkins: Marie Atkins was mayor of the Kingston and Saint Andrew Corporation (KSAC) from 1989 to 2003. Atkins was the third female mayor for Kingston & St. Andrew, Jamaica, and is the longest-serving mayor to date for Kingston & St. Andrew. She is the first Jamaican to become the president of the World Conference of Mayors.
Document 5: Leon Belleth: Leon Belleth was a popular announcer with Radio Ceylon and subsequently the Sri Lanka Broadcasting Corporation. He presented a range of radio programs including Holiday Choice. Listeners enjoyed his free and easy style of broadcasting. Leon Belleth was educated at one of Sri Lanka's foremost educational institutions - Royal College Colombo. He was introduced to radio by the veteran broadcaster, Vernon Corea who mentored him while he was in Radio Ceylon.
Document 6: Antonio Flores Jijón: Antonio Flores was born in Quito at Carondelet Palace (the presidential residence) while his father, General Juan José Flores, presided over the nation. His mother was Mercedes Jijón de Vivanco y Chiriboga, daughter of the Count of Casa Jijón, member of one of Quito's old aristocratic families. During the first presidency of Gabriel García Moreno, Flores was an ambassador in Paris, London, and Washington. He died in Geneva, Switzerland. He was married to Leonor Ruiz de Apodaca y García-Tienza, a native of Cuba. His vicepresident and predecessor was Pedro José Cevallos.
Document 7: Andrés Manuel López Obrador: On 2 July  2000, he was elected Head of Government of the Federal District—a position akin to that of city mayor for the national capital district—with 38.3% of the vote.
Document 8: Mexico City: The first elected head of government was Cuauhtémoc Cárdenas. Cárdenas resigned in 1999 to run in the 2000 presidential elections and designated Rosario Robles to succeed him, who became the first woman (elected or otherwise) to govern Mexico City. In 2000 Andrés Manuel López Obrador was elected, and resigned in 2005 to run in the 2006 presidential elections, Alejandro Encinas being designated by the Legislative Assembly to finish the term. In 2006, Marcelo Ebrard was elected for the 2006–2012 period.
Document 9: Lionel Messi: Lionel Andrés Messi was born on 24 June 1987 in Rosario, the third of four children of Jorge Messi, a steel factory manager, and his wife Celia Cuccittini, who worked in a magnet manufacturing workshop. On his father's side, he is of Italian and Spanish descent, the great-grandson of immigrants from the northcentral Adriatic Marche region of Italy and Catalonia, and on his mother's side, he has primarily Italian ancestry. Growing up in a tight-knit, football-loving family, "Leo" developed a passion for the sport from an early age, playing constantly with his older brothers, Rodrigo and Matías, and his cousins, Maximiliano and Emanuel Biancucchi, both of whom became professional footballers. At the age of four he joined local club Grandoli, where he was coached by his father, though his earliest influence as a player came from his maternal grandmother, Celia, who accompanied him to training and matches. He was greatly affected by her death, shortly before his eleventh birthday; since then, as a devout Catholic, he has celebrated his goals by looking up and pointing to the sky in tribute of his grandmother.
Document 10: Havana: The current mayor of Havana ("President of the People's Power Provincial Assembly") is Marta Hernández Romero, she was elected on March 5, 2011.
Document 11: Miami: In recent years the city government, under Mayor Manny Diaz, has taken an ambitious stance in support of bicycling in Miami for both recreation and commuting. Every month, the city hosts "Bike Miami", where major streets in Downtown and Brickell are closed to automobiles, but left open for pedestrians and bicyclists. The event began in November 2008, and has doubled in popularity from 1,500 participants to about 3,000 in the October 2009 Bike Miami. This is the longest-running such event in the US. In October 2009, the city also approved an extensive 20-year plan for bike routes and paths around the city. The city has begun construction of bike routes as of late 2009, and ordinances requiring bike parking in all future construction in the city became mandatory as of October 2009.
Document 12: Isagani Yambot: Yambot was born in Tagbilaran City, Bohol, in 1934. Both his parents were teachers: his mother taught science while his father taught English and mathematics. The family moved to Manila, settling in the Tondo district. He studied at the University of the Philippines, where he earned a degree in liberal arts. He earned a fellowship to the Washington Journalism Center. His first job in journalism was at the now closed "Manila Times", which he joined in 1953. He remained with the newspaper, covering both Malacañan Palace and the Philippines' Senate. He left the "Manila Times", taking a position as a night editor for United Press International (UPI) in 1973. In 1974, Yambot joined the former "Times Journal", serving as that newspaper's managing editor from 1983 until 1985.
Document 13: Cerro, Havana: Cerro is one of the 15 municipalities or boroughs ("municipios" in Spanish) in the city of Havana, Cuba. As of 2016 it is considered "one of Havana’s poorest municipalities."
Document 14: Leon Ichaso: Leon Ichaso was born in Havana August 3, 1948, into a family of well-known writers, journalists and artists. His father, Justo Rodríguez Santos, was one of Cuba's most respected poets and a pioneer in broadcast TV and radio -and his mother Antonia Ichaso had a radio magazine show in the 1940s.
Document 15: Houston: The city of Houston has a strong mayoral form of municipal government. Houston is a home rule city and all municipal elections in the state of Texas are nonpartisan. The City's elected officials are the mayor, city controller and 16 members of the Houston City Council. The current mayor of Houston is Sylvester Turner, a Democrat elected on a nonpartisan ballot. Houston's mayor serves as the city's chief administrator, executive officer, and official representative, and is responsible for the general management of the city and for seeing that all laws and ordinances are enforced.
ground_truth: Marta Hernández Romero
sub_queries: Where was Leon Ichaso born in? Answer: Havana
Who was in charge of Havana ? Answer: Marta Hernández Romero