Question: In which county is the city where Matt Macri was born?

full_context: Document 1: Colo, Iowa: Colo is a city in Story County, Iowa, United States. The population was 876 at the 2010 census. It is part of the Ames, Iowa Metropolitan Statistical Area, which is a part of the larger Ames-Boone, Iowa Combined Statistical Area.
Document 2: Jake Marisnick: Jacob Shawn Marisnick (born March 30, 1991) is an American professional baseball outfielder for the Houston Astros of Major League Baseball. He debuted in the major leagues with the Miami Marlins in 2013 and was traded to the Houston Astros in 2014.
Document 3: Saylorville, Iowa: Saylorville is a census-designated place (CDP) in Polk County, Iowa, United States. The population was 3,301 at the 2010 census. It is part of the Des Moines–West Des Moines Metropolitan Statistical Area. The Saydel Community School District is located in this area. The unincorporated community of Marquisville is in this area.
Document 4: Kalona, Iowa: Kalona is a city in Washington County, Iowa, United States. It is part of the Iowa City, Iowa Metropolitan Statistical Area. The population was 2,363 at the 2010 census. Kalona is the second largest city in Washington County.
Document 5: Corydon, Iowa: Corydon is a city in Wayne County, Iowa, United States. The population was 1,585 in the 2010 census, a decline from 1,591 in the 2000 census. It is the county seat of Wayne County.
Document 6: Middletown, Iowa: Middletown is a city in Des Moines County, Iowa, United States. The population was 318 at the 2010 census. It is part of the Burlington, IA–IL Micropolitan Statistical Area.
Document 7: Des Moines metropolitan area: The Des Moines metropolitan area, officially known as the Des Moines -- West Des Moines, IA Metropolitan Statistical Area (MSA), consists of five counties in central Iowa, United States: Polk, Dallas, Warren, Madison, and Guthrie. The 2010 census population of these counties was 569,633, and the 2017 estimated population was 645,911.
Document 8: Indianola, Iowa: Indianola is a city in Warren County, Iowa, United States, 18 miles south of Des Moines, Iowa. The population was 14,782 at the 2010 census. It is the county seat of Warren County.
Document 9: Steve McCatty: Steven Earl McCatty (born March 20, 1954) is a former Major League Baseball pitcher who played for the Oakland Athletics from 1977 to 1985. He graduated from Troy High School in Troy, Michigan in 1972. He coached the Washington Nationals from 2009 through 2015.
Document 10: Matt Ryan (American football): Matthew Thomas Ryan (born May 17, 1985), nicknamed ``Matty Ice '', is an American football quarterback for the Atlanta Falcons of the National Football League (NFL). After playing college football for Boston College, Ryan was drafted by the Falcons with the third overall pick in the first round of the 2008 NFL Draft.
Document 11: Brent Morel: Brenton Andre Morel (born April 21, 1987) is a former American professional baseball third baseman. He previously played for the Chicago White Sox and Pittsburgh Pirates.
Document 12: Matt Snider: Matthew "Matt" Kale Snider (born on January 26, 1976, in Des Moines, Iowa) is a former American football fullback from the University of Richmond. He graduated in 1999 with a Bachelor of Arts degree in Sports Science and Health. The Carolina Panthers offered him an NFL free agent contract in the spring of 1999. He spent the summer in Charlotte and went through three mini-camps with the club, but they released him after the third. The Green Bay Packers then offered him a two-year contract in July 1999, and Snider made the roster as the back-up fullback and special teams performer after coming into camp as the fourth-string fullback. One highlight of his career at Green Bay was a 66-yard touchdown reception at Lambeau Field.
Document 13: Todd Sears: Todd Andrew Sears (born October 23, 1975 in Des Moines, Iowa) is a former Major League Baseball first baseman for the Minnesota Twins and San Diego Padres.
Document 14: Matt Bobo: Matthew "Matt" Bobo (born January 6, 1977 in Des Moines, Iowa) is an American soccer player who last played for Carolina RailHawks in the North American Soccer League.
Document 15: Matt Macri: Matthew Michael Macri (born May 29, 1982 in Des Moines, Iowa) is a Major League Baseball player who plays third base.
ground_truth: Warren County
sub_queries: Matt Macri >> place of birth Answer: Des Moines
Des Moines >> located in the administrative territorial entity Answer: Warren County