question: What is the place of birth of the director of film Gangster'S Law?
context: [["Peter Levin", ["Peter Levin is an American director of film, television and theatre."]], ["Siro Marcellini", ["Siro Marcellini (born 16 September 1921) is an Italian director and screenwriter.", "Born in Genzano di Roma, Marcellini started his career as a theater director before moving to films, where he first worked as an assistant director.", "He directed eleven films between 1953 and 1970, also writing the screenplays for several of them."]], ["Natasha Law", ["Andrea Natasha Law( born 1 January 1970) is an English painter and graphic designer."]], ["David Law (athlete)", ["David Charles Law( born c.1930), is a male former athlete who competed for England."]], ["Brian Law", ["Brian John Law( born 1 January 1970 in Merthyr Tydfil) is a Welsh former professional footballer and Wales international."]], ["Ian Barry (director)", ["Ian Barry is an Australian director of film and TV."]], ["Scott Law (cyclist)", ["Scott Law( born 9 March 1991) is an Australian professional racing cyclist.", "He rode at the 2015 UCI Track Cycling World Championships."]], ["Shaleise Law", ["Shaleise Law( born 24 July 1998) is an Australian rules footballer who last played for the Brisbane Lions in the AFL Women's."]], ["Gangster's Law", ["Gangster's Law  is a 1969 Italian thriller film directed by Siro Marcellini and starring Klaus Kinski."]], ["John Law (footballer, born 1887)", ["John Law( born 1877) was a Scottish professional footballer who played as a winger for Sunderland."]]]
supporting_facts: [["Gangster's Law", 0], ["Siro Marcellini", 1]]
evidences: [["Gangster's Law", "director", "Siro Marcellini"], ["Siro Marcellini", "place of birth", "Genzano di Roma"]]
answer: Genzano di Roma