New England is a geographical region comprising six states of the northeastern United States: Maine, Vermont, New Hampshire, Massachusetts, Rhode Island, and Connecticut.
 It is bordered by the state of New York to the west and south, and by the Canadian provinces of New Brunswick and Quebec to the northeast and north, respectively.
 The Atlantic Ocean is to the east and southeast, and Long Island Sound is to the south.
 Boston, the capital of Massachusetts, is New England's largest city.
 The largest metropolitan area is Greater Boston, which also includes Worcester, Massachusetts (the second-largest city in New England), Manchester (the largest city in New Hampshire), and Providence (the capital and largest city of Rhode Island), with nearly a third of the entire region's population.
Greater Boston is the metropolitan region of New England encompassing the municipality of Boston, the capital of the US state of Massachusetts, and the most populous city in New England, as well as its surrounding areas.
 The region forms the northern arc of the US northeast megalopolis and as such, Greater Boston can be described as either a metropolitan statistical area (MSA), or as a broader combined statistical area (CSA).
 The MSA consists of most of the eastern third of Massachusetts, excluding the South Coast region and Cape Cod; while the CSA additionally includes the municipalities of Manchester (the largest city in the US state of New Hampshire), Providence (the capital and largest city of the US state of Rhode Island), Worcester, Massachusetts (the second largest city in New England), as well as the South Coast region and Cape Cod in Massachusetts.
Kallstadt (] ) is a village in the Palatine part of Rhineland-Palatinate, one of Germany's 16 federal states.
 It is part of the Rhine-Neckar Metropolitan Region which is centered around the city of Mannheim Germany's 22nd largest city.
 During much of the 19th century, it was part of the principality of Bavaria.
Robert Kampka (born 21 February 1982) is a German football referee who is based in Mainz.
 He referees for TSV Schornbach of the Württemberg Football Association.
The Staatsphilharmonie Rheinland-Pfalz (German State Philharmonic of Rhineland-Palatinate) is the largest and leading symphony orchestra of the German state of Rhineland-Palatinate, based in Ludwigshafen am Rhein.
 It gives concerts in Rhineland-Palatinate as well as across Germany and abroad.
Bavaria ( German: "Bayern" ] ; Czech: "Bavorsko" ), officially the Free State of Bavaria (German: "Freistaat Bayern" ] ) is a landlocked federal state of Germany, occupying its southeastern corner.
 With an area of 70,550.19 square kilometres (27,200 sq mi), Bavaria is the largest German state by land area.
 Its territory comprises roughly a fifth of the total land area of Germany.
 With 12.9 million inhabitants, it is Germany's second-most-populous state (after North Rhine-Westphalia).
 Bavaria's capital and largest city, Munich, is the third largest city in Germany.
Mainz ( ; ] ; Latin: "Mogontiacum" , French: "Mayence" ) is the capital and largest city of the state of Rhineland-Palatinate in Germany.
 It was the capital of the Electorate of Mainz at the time of the Holy Roman Empire.
 In antiquity Mainz was a Roman fort city which commanded the west bank of the Rhine and formed part of the northernmost frontier of the Roman Empire; it was founded as a military post by the Romans in the late 1st century BC and became the provincial capital of Germania Superior.
 The city is located on the river Rhine at its confluence with the Main opposite Wiesbaden, in the western part of the Frankfurt Rhine-Main region; in the modern age, Frankfurt shares much of its regional importance.
Ahmedabad is the largest city in the state of Gujarat.
 It is located in western India on the banks of the River Sabarmati.
 The city served as political as well as economical capital of the region since its establishment.
 The earliest settlement can be recorded around the 12th century under Chaulukya dynasty rule.
 The present city was founded on 26 February 1411 and announced as the capital on 4 March 1411 by Ahmed Shah I of Gujarat Sultanate as a new capital.
 Under the rule of sultanate (1411–1511) the city prospered followed by decline (1511–1572) when the capital was transferred to Champaner.
 For next 135 years (1572-1707), the city renewed greatness under the early rulers of Mughal Empire.
 The city suffered due to political instability (1707-1817) under late Mughal rulers followed by joint rule between Maratha and Mughal.
 The city further suffered following joint Maratha rule.
 The city again progressed when politically stabilized when British East India Company established the rule in the city (1818-1857).
 The city further renewed growth when it gain political freedom by establishment of municipality and opening of railway under British crown rule (1857–1947).
 Following arrival of Mahatma Gandhi in 1915, the city became centre stage of Indian independence movement.
 Many activists like Sardar Patel served the municipality of the city before taking part in the movement.
 After independence, the city was a part of Bombay state.
 When Gujarat was carved out in 1960, it again became the capital of the state until establishment of Gandhinagar in 1965.
 Ahmedabad is also the cultural and economical centre of Gujarat and the seventh largest city of India.
Hesse ( or ) or Hessia (German: "Hessen" ] , Hessian dialect: "Hesse" ] ) is a federal state ("Land") of the Federal Republic of Germany, with just over six million inhabitants.
 The state capital is Wiesbaden; the largest city is Frankfurt am Main.
 Until the unification of Germany, the territory of Hesse was occupied by the Grand Duchy of Hesse, the Duchy of Nassau, the free city of Frankfurt and the Electorate of Hesse, known also as Hesse-Cassel.
 Due to divisions after World War II, the modern federal state does not cover the entire cultural region of Hesse, which includes both the State of Hesse and the area known as Rhenish Hesse (Rheinhessen) in the neighbouring state of Rhineland-Palatinate.
Rhineland-Palatinate (German: "Rheinland-Pfalz" , ] ; French: "Rhénanie-Palatinat" ) is one of the 16 states (German: "Bundesländer" ) of the Federal Republic of Germany.
 It has an area of 19846 km2 and about four million inhabitants.
 Its state capital and largest city is Mainz.
 Rhineland-Palatinate is located in western Germany and was formed after World War II by the French military government from parts of regions historically not belonging together.
 The state has developed its own identity since, built on its natural and cultural heritage of extensive winegrowing, picturesque landscapes and its many castles.

Question: Robert Kampka is based in what capital and largest city of the state of Rhineland-Palatinate in Germany?
Answer: Mainz