Question: What is the capital of the county that contains the city where Adam Blackstone was born?

full_context: Document 1: Neil Jason: Neil Jason, is an American session bass guitarist, singer, songwriter, multi-instrumentalist, producer and composer. In a career spanning more than 30 years, he has worked with some of the biggest recording artists, including John Lennon, Billy Joel, Roxy Music, Mick Jagger, Pete Townshend, Paul McCartney, Paul Simon, Kiss, Michael Jackson, Brecker Brothers, Cyndi Lauper, Harry Chapin, Dire Straits, Bryan Ferry, Michael Franks, Eddie Van Halen and tenor Luciano Pavarotti. He also writes for TV and film.
Document 2: Black Thought: Tariq Luqmaan Trotter (born October 3, 1971), better known as Black Thought, is an American rapper and the lead MC of the Philadelphia-based hip hop group The Roots, as well as an occasional actor. Black Thought, who co-founded The Roots with drummer Questlove (Ahmir Thompson), is widely lauded for his live performance skills, continuous multisyllabic rhyme schemes, complex lyricism, double entendres, and politically aware lyrics. With The Roots, he is a singer and rapper on "The Tonight Show Starring Jimmy Fallon," frequently playing games with Fallon and his guests.
Document 3: 2nd Legislative District (New Jersey): New Jersey's 2nd Legislative District is one of 40 in the state, covering the Atlantic County municipalities of Absecon City, Atlantic City, Brigantine City, Buena Borough, Buena Vista Township Egg Harbor City, Egg Harbor Township, Folsom Borough, Hamilton Township, Linwood City, Longport Borough, Margate City, Mullica Township, Northfield City, Pleasantville City, Somers Point City and Ventnor City as of the 2011 apportionment. Except for an eight-year period from 1974 until 1982, the 2nd District is exclusively made up of municipalities from Atlantic County since 1967.
Document 4: WKJV-LP: WKJV-LP is a Southern Gospel and Religious formatted broadcast radio station licensed to Bristol, Virginia, serving the twin cities of Bristol in Virginia and in Tennessee. WKJV-LP is owned and operated by Belle Meadows Baptist Church.
Document 5: WVYC: WVYC is a college radio station licensed by the Federal Communications Commission (FCC) to serve the community of York, Pennsylvania, United States. The station broadcasts from the Robert V. Iosue Student Union Building on the campus of York College of Pennsylvania in York.
Document 6: WJYA: WJYA is a Contemporary Christian formatted broadcast radio station licensed to Emporia, Virginia, serving Emporia, Lawrenceville, and South Hill in Virginia and Roanoke Rapids in North Carolina. WJYA is owned and operated by Baker Family Stations.
Document 7: Stevie Blacke: Born in London and raised in Ohio, Blacke grew up with the music of Eric Clapton and Pink Floyd, before he attended the Berklee College of Music to study guitar, mandolin and violin. He learned and first recorded cello during a session for a hip hop artist.
Document 8: WKOY-FM: WKOY-FM is an American classic rock-formatted broadcast radio station licensed to Princeton, West Virginia, serving Princeton, West Virginia, Bluefield, Virginia and Bluefield, West Virginia. WKOY-FM is owned and operated by Alpha Media.
Document 9: 6th Legislative District (New Jersey): New Jersey's 6th Legislative District is one of 40 in the New Jersey Legislature, covering the Burlington County municipality of Maple Shade Township and the Camden County municipalities of Berlin Township, Cherry Hill Township, Collingswood Borough, Gibbsboro Borough, Haddon Township, Haddonfield Borough, Hi-Nella Borough, Merchantville Borough, Oaklyn Borough, Pennsauken Township, Somerdale Borough, Stratford Borough, Tavistock Borough and Voorhees Township as of the 2011 apportionment.
Document 10: Hunterdon Central Regional High School: Hunterdon Central Regional High School is a comprehensive, four-year public high school, and regional school district that serves students from five municipalities in east central Hunterdon County, New Jersey, United States. Students hail from Delaware Township, East Amwell Township, Flemington, Raritan Township and Readington Township.
Document 11: Adam Blackstone: Adam Blackstone (born December 4, 1982, in Trenton, NJ) is a multi-instrumentalist, songwriter, producer, and bassist. He is currently the musical director for Nicki Minaj and Justin Timberlake. Adam has also directed and played in performances with a star-studded list of cliental that includes Jay-Z, Kanye West, Eminem, Janet Jackson, Dr. Dre,The Jonas Brothers, The Roots, Ms.Marilyn Marshall, Al Green, The Isley Brothers , Angie Stone, Mike Posner, Steve Tirpak, Al Jarreau, Maroon 5, Demi Lovato, and Jill Scott.
Document 12: 8th Legislative District (New Jersey): New Jersey's 8th Legislative District is one of 40 in the New Jersey Legislature, covering the Atlantic County municipality of Hammonton; the Burlington County municipalities of Eastampton Township, Evesham Township, Hainesport Township, Lumberton Township, Mansfield Township, Medford Township, Medford Lakes Borough, Mount Holly Township, Pemberton Borough, Pemberton Township, Shamong Township, Southampton Township, Springfield Township, Westampton Township and Woodland Township; and the Camden County municipalities of Berlin Borough, Pine Hill Borough, Pine Valley Borough and Waterford Township as of the 2011 apportionment.
Document 13: 15th Legislative District (New Jersey): New Jersey's 15th Legislative District is one of 40 in the New Jersey Legislature, covering the Hunterdon County municipalities of East Amwell Township, Lambertville City and West Amwell Township; and the Mercer County municipalities of Ewing Township, Hopewell Borough, Hopewell Township, Lawrence Township, Pennington Borough, Trenton City and West Windsor Township.
Document 14: WAEY: WAEY is a Southern Gospel formatted broadcast radio station licensed to Princeton, West Virginia, serving Princeton and Mercer County, West Virginia. WAEY is owned and operated by Princeton Broadcasting, Inc.
Document 15: 3LAU: Justin David Blau (born January 9, 1991), better known by his stage name 3LAU (pronounced "Blau"), is an American DJ and electronic dance music producer. Based in Las Vegas, he has released three mixtapes since 2011 and several singles, and has performed at festivals such as Electric Zoo in New York and EDC Vegas. In 2014 he released the track "Vikings" with Botnek on Dim Mak Records. Justin has two brothers, Kevin and Alberto. Alberto has a son named Brandon Lau, in reference to the family's last name and his brother’s nickname, 3Lau (Blau).
ground_truth: Princeton
sub_queries: Adam Blackstone >> place of birth Answer: Trenton
Trenton >> located in the administrative territorial entity Answer: Mercer County
Mercer County >> capital Answer: Princeton