With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Akira Toriyama is an artist.
text_B: The following is a list of Villa Maria del Triunfo District 's mayors in Lima Province in the 20th and 21st centuries .. Villa Maria del Triunfo District. Villa Maria del Triunfo District. Lima Province. Lima Province. Leonardo Maravi Olivos , 1962-1963. Leonardo Maravi Olivos. Leonardo Maravi. Andres Antezana Sanchez , 1963-1964. Aroldo Prettell Vega , APRA-UNO 1964-1966. Aroldo Prettell Vega. Aroldo Prettell. Aroldo Prettell Vega , APRA-UNO 1967-1969. Aroldo Prettell Vega. Aroldo Prettell. Pedro Valle Medina , 1970-1972. Emilio Suicho Apac , 1972-1977. Luis Mendoza Sagaceta , 1979-1980. Alfredo Valle V. , 1980. Oscar Lopez Chavez , AP 1981-1983. Washington Armando Ipenza Pacheco , IU -LRB- UNIR -RRB- 1984-1986. Washington Armando Ipenza Pacheco. Washington Ipenza. Walter Machuca Arteta , PAP 1987-1989. Walter Machuca Arteta. Walter Machuca. Luis Max Villavicencio Torres , IU -LRB- PUM -RRB- 1990-1992. Aniceto Ibarguen Rios , OBRAS 1993-1995. Rafael Chacon Saavedra , Cambio 90 - Nueva Mayoria 1996-1998. Washington Armando Ipenza Pacheco , Somos Peru 1999-2002. Washington Armando Ipenza Pacheco. Washington Ipenza. Washington Armando Ipenza Pacheco , Somos Peru 2003-2006. Washington Armando Ipenza Pacheco. Washington Ipenza. Juan Jose Castillo Angeles , Unidad Nacional 2007-2010. Juan Jose Castillo Angeles. Juan Jose Castillo ( journalist ). Villa Maria del Triunfo. Villa Maria del Triunfo. Category :Lists of mayors of Lima by district
not_related.