Information:  - Washington, D.C., formally the District of Columbia and commonly referred to as "Washington", "the District", or simply "D.C.", is the capital of the United States.  - Henrietta Maria of France (25 November 1609  10 September 1669) was queen consort of England, Scotland, and Ireland as the wife of King Charles I. She was mother of his two immediate successors, Charles II and James II.  - West Virginia is a state located in the Appalachian region of the Southern United States. It is bordered by Virginia to the southeast, Kentucky to the southwest, Ohio to the northwest, Pennsylvania to the north (and, slightly, east), and Maryland to the northeast. West Virginia is the 41st largest by area, the 38th most populous, and has the second lowest household income of the 50 United States. The capital and largest city is Charleston.  - Delaware is a state located in the Mid-Atlantic and/or Northeastern regions of the United States. It is bordered to the south and west by Maryland, to the northeast by New Jersey, and to the north by Pennsylvania. The state takes its name from Thomas West, 3rd Baron De La Warr, an English nobleman and Virginia's first colonial governor.  - The Potomac River is located along the mid-Atlantic Ocean coast of the United States and flows into the Chesapeake Bay. The river (main stem and North Branch) is approximately long, with a drainage area of about 14,700 square miles (38,000 km²). In terms of area, this makes the Potomac River the fourth largest river along the Atlantic coast of the United States and the 21st largest in the United States. Over 5 million people live within the Potomac watershed.  - Virginia (, officially the Commonwealth of Virginia) is a state located in the Mid-Atlantic region of the United States, as well as in the historic Southeast. Virginia is nicknamed the "Old Dominion" due to its status as the first colonial possession established in mainland British America, and "Mother of Presidents" because eight U.S. presidents were born there, more than any other state. The geography and climate of the Commonwealth are shaped by the Blue Ridge Mountains and the Chesapeake Bay, which provide habitat for much of its flora and fauna. The capital of the Commonwealth is Richmond; Virginia Beach is the most populous city, and Fairfax County is the most populous political subdivision. The Commonwealth's estimated population is over 8.3 million, which is slightly less than New York City.  - The contiguous United States consists of the 48 adjoining U.S. states plus Washington, D.C. (federal district), on the continent of North America. The term excludes the non-contiguous states of Alaska and Hawaii and all off-shore United States territories and possessions, which include American Samoa, Guam, the Northern Mariana Islands, Puerto Rico, and the U.S. Virgin Islands.  - Charles I (19 November 1600  30 January 1649) was monarch of the three kingdoms of England, Scotland, and Ireland from 27 March 1625 until his execution in 1649.  - The Maryland Democratic Presidential Primary took place on February 12 , 2008 . Nicknamed the `` Potomac Primary '' or the `` Chesapeake Primary '' because the District of Columbia and Virginia also held their primaries that day ( and all three border the Potomac River ) , a total of 70 delegates were up for grabs in Maryland . The winner in each of Maryland 's eight congressional districts was awarded all of that district 's delegates , totaling 46 . Another 24 delegates were awarded to the statewide winner , Barack Obama . The 70 delegates represented Maryland at the Democratic National Convention in Denver , Colorado . Twenty - nine other unpledged delegates , known as superdelegates , also attended the convention and cast their votes as well . By order of a judge , the polling places in the Maryland Democratic Primary were extended to 9:30 p.m. EST in order to compensate for voters who were delayed in traffic by inclement weather . The same day , an intense ice storm brought .25 inches - 1 inch of ice accumulations across Maryland .  - Barack Hussein Obama II (; born August 4, 1961) is an American politician who served as the 44th President of the United States from 2009 to 2017. He was the first African American to serve as president, as well as the first born outside the contiguous United States. He previously served in the U.S. Senate representing Illinois from 2005 to 2008, and in the Illinois State Senate from 1997 to 2004.  - A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as stream, creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague.  - The President of the United States (POTUS) is the elected head of state and head of government of the United States. The president directs the executive branch of the federal government and is the commander-in-chief of the United States Armed Forces.  - The Chesapeake Bay is an estuary lying inland from the Atlantic Ocean, and surrounded by the North American mainland to the west, and the Delmarva Peninsula to the east. It is the largest such body in the contiguous United States. The northern bay is within Maryland, the southern portion within Virginia, and is a very important feature for the ecology and economy of those two states, as well as others. More than 150 major rivers and streams flow into the bay's drainage basin, which covers parts of six states (New York, Pennsylvania, Delaware, Maryland, Virginia and West Virginia) plus all of the District of Columbia.  - The Atlantic Ocean is the second largest of the world's oceans with a total area of about . It covers approximately 20 percent of the Earth's surface and about 29 percent of its water surface area. It separates the "Old World" from the "New World".  - Maryland is a state located in the Mid-Atlantic region of the United States, bordering Virginia, West Virginia, and Washington, D.C. to its south and west; Pennsylvania to its north; and Delaware to its east. The state's largest city is Baltimore, and its capital is Annapolis. Among its occasional nicknames are "Old Line State", the "Free State", and the "Chesapeake Bay State". The state is named after Henrietta Maria of France, the wife of Charles I of England.   - Pennsylvania (Pennsylvania German: "Pennsylvaani"), officially the Commonwealth of Pennsylvania, is a state located in the northeastern and Mid-Atlantic regions of the United States. The Appalachian Mountains run through its middle. The commonwealth borders Delaware to the southeast, Maryland to the south, West Virginia to the southwest, Ohio to the west, Lake Erie and the Canadian province of Ontario to the northwest, New York to the north, and New Jersey to the east.  - The Democratic National Convention (DNC) is a series of presidential nominating conventions held every four years since 1832 by the United States Democratic Party. They have been administered by the Democratic National Committee since the 1852 national convention. The primary goal of the Democratic National Convention is to nominate and confirm a candidate for president and vice president, adopt a comprehensive party platform and unify the party. Pledged delegates from all fifty U.S. states and from American dependencies and territories such as Puerto Rico and the Virgin Islands, and superdelegates which are unpledged delegates representing the Democratic establishment, attend the convention and cast their votes to choose the Party's presidential candidate. Like the Republican National Convention, the Democratic National Convention marks the formal end of the primary election period and the start of the general election season.  - Illinois is a state in the midwestern region of the United States, achieving statehood in 1818. It is the 5th most populous state and 25th largest state in terms of land area, and is often noted as a microcosm of the entire country. The word "Illinois" comes from the Algonquin word for "tribe of superior men". With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal, timber, and petroleum in the south, Illinois has a diverse economic base and is a major transportation hub. The Port of Chicago connects the state to other global ports from the Great Lakes, via the Saint Lawrence Seaway, to the Atlantic Ocean, as well as the Great Lakes to the Mississippi River, via the Illinois River. For decades, O'Hare International Airport has been ranked as one of the world's busiest airports. Illinois has long had a reputation as a bellwether both in social and cultural terms and politics.  - In American politics, a "superdelegate" is an unpledged delegate to the Democratic National Convention who is seated automatically and chooses for themselves for whom they vote. These Democratic Party superdelegates (who make up just under 15% of all convention delegates) include elected officials and party activists and officials. Democratic superdelegates are free to support any candidate for the presidential nomination. This contrasts with convention "pledged" delegates who are selected based on the party primaries and caucuses in each U.S. state, in which voters choose among candidates for the party's presidential nomination. Moreover, superdelegates are permitted to participate in the primary elections as regular voters.    After reading the paragraphs above, we are interested in knowing the entity with which 'maryland democratic primary' exhibits the relationship of 'instance of'. Find the answer from the choices below.  Choices: - 25  - area  - august  - bay  - body of water  - city  - continent  - country  - county  - district  - dominion  - drainage  - eight  - election  - england  - estuary  - executive branch  - feature  - federal government  - government  - governor  - habitat  - head  - head of state  - income  - international airport  - january  - lake  - line  - lying  - monarch  - mother  - name  - november  - ocean  - peninsula  - people  - politics  - population  - queen  - region  - ridge  - river  - saint  - sea  - state  - status  - surface  - three  - tribe  - two  - virginia  - wife  - word
The answer to this question is:
election