Question: Who is the mayor of the birth city of Pedro Carrío?

full_context: Document 1: Iván Pérez: Iván Ernesto Pérez Vargas (born 29 June 1971 in Havana) is a water polo player from Spain. He was born in Cuba, but became a Spanish citizen. He was a member of the national team that finished in sixth place at the 2004 Summer Olympics in Athens, Greece. He also competed at the 2008 and 2012 Olympics.
Document 2: 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 3: René Portocarrero: René Portocarrero (born Havana, 24 February 1912; died Havana, 7 April 1985) was a Cuban artist recognised internationally for his achievements.
Document 4: Carlos Berrocal: Carlos Berrocal (born May 18, 1957) is a former backstroke and freestyle swimmer from Puerto Rico. He competed for his native country at the 1976 Summer Olympics in Montréal, Quebec, Canada.
Document 5: Carles Sans: Carles Sans López (born May 25, 1975 in Barcelona, Spain) is a former water polo player from Spain, who was a member of the national team that won the gold medal at the 1996 Summer Olympics in Atlanta, United States.
Document 6: 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 7: 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.
Document 8: 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 9: Pedro (footballer, born 1984): Pedro Santa Cecilia García (born 10 March 1984), known simply as Pedro, is a Spanish retired footballer who played as a right midfielder.
Document 10: 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 11: 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 12: 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 13: Pedro Carrío: Pedro Carrió García (born 1970 in Havana) is a former international swimmer from Cuba, who participated in various international competitions for his native country, starting in 1982. He maintains the National Records in Cuban Swimming for Free Style 400 meters (1990), 1,500 meters (1991) and Free Style Relay 800 meters (1991).
Document 14: Dionisio Carreras: Dionisio Carreras (9 October 1890 – 16 July 1949) was a Spanish long-distance runner. He competed in the marathon at the 1924 Summer Olympics.
Document 15: 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.
ground_truth: Marta Hernández Romero
sub_queries: Pedro Carrío >> place of birth Answer: Havana
Who was in charge of Havana ? Answer: Marta Hernández Romero