Answer the following question: Information: - Sycamore is a city in DeKalb County, Illinois, United States. It has a commercial district based and centered on Illinois Route 64. The population was 17,519 at the 2010 census, up from 12,020 in 2000. Sycamore is the county seat of DeKalb County and was named after the sycamore tree. - A census is the procedure of systematically acquiring and recording information about the members of a given population. It is a regularly occurring and official count of a particular population. The term is used mostly in connection with national population and housing censuses; other common censuses include agriculture, business, and traffic censuses. The United Nations defines the essential features of population and housing censuses as "individual enumeration, universality within a defined territory, simultaneity and defined periodicity", and recommends that population censuses be taken at least every 10 years. United Nations recommendations also cover census topics to be collected, official definitions, classifications and other useful information to co-ordinate international practice. - The Sycamore Historic District is a meandering area encompassing of the land in and around the downtown of the DeKalb County, Illinois, county seat, Sycamore. The area includes historic buildings and a number of historical and Victorian homes. Some significant structures are among those located within the Historic District including the DeKalb County Courthouse and the Sycamore Public Library. The district has been listed on the National Register of Historic Places since May 2, 1978. - The Sycamore Public Library, in Sycamore, Illinois, was erected in 1905 in the former location of Mansion House, Sycamore's oldest structure. Construction began in May of that year and the library officially opened to the public on Thanksgiving Day, 1905. The library joined the National Register of Historic Places in May 1978 with the rest of the Sycamore Historic District. The library still operates, as of 2010, as the Sycamore library. The library was erected with the help of a $10,000 grant from Andrew Carnegie in 1905. - Illinois Route 64 (IL64) is an eastwest state highway in Northern Illinois. Its western terminus is at the Iowa state line, connecting with U.S. Route 52 (US52) and Iowa Highway 64 via the Savanna-Sabula Bridge at the Mississippi River west of Savanna. IL64 then travels east through Mount Carroll, Lanark, Mount Morris, Oregon, Sycamore, Lily Lake, Saint Charles and the western suburbs of Chicago before terminating at U.S. Route 41 (US41, Lake Shore Drive) on the city's north side. IL64 is long. - A city is a large and permanent human settlement. Although there is no agreement on how a city is distinguished from a town in general English language meanings, many cities have a particular administrative, legal, or historical status based on local law. - A tax incentive is an aspect of a country's tax code designed to incentivize, or encourage a particular economic activity. - DeKalb County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 105,160. Its county seat is Sycamore. - A county seat is an administrative center, seat of government, or capital city of a county or civil parish. The term is used in the United States, Canada, Romania, China and Taiwan. In the United Kingdom and Ireland, county towns have a similar function. - The Charles O. Boynton Carriage House is a prominent structure in the Sycamore Historic District , located in Sycamore , Illinois . The Sycamore Historic District was added to the National Register of Historic Places in 1978 . The Carriage House is considered one of more than 150 contributing properties to the overall historic integrity of the district . - The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures, and objects deemed worthy of preservation. A property listed in the National Register, or located within a National Register Historic District, may qualify for tax incentives derived from the total value of expenses incurred preserving the property. - 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. Given the information above, choose from the list below the object entity that exhibits the relation 'instance of' with the subject 'charles o. boynton carriage house'. Choices: - airport - area - aspect - capital - census - city - civil parish - code - commercial district - construction - count - country - county - county seat - district - federal government - function - government - grant - house - human settlement - information - international airport - lake - line - list - location - mansion - number - population - public - public library - route - saint - savanna - seat - seat of government - settlement - side - state - state highway - status - tax - town - tribe - value - word
Answer:
construction