Question: The Leader is an American daily newspaper published in which city in New York alongside the Chemung River?

Context paragraphs:
New York Evening Mail: The New York Evening Mail (1867-1924) was an American daily newspaper published in New York City.  For a time the paper was the only evening newspaper to have a franchise in the Associated Press.

New York State Route 427: New York State Route 427 (NY 427) is an east–west state highway in Chemung County, New York, in the United States.  It extends for 11.5 mi from its western terminus at an intersection with NY 14 in the town of Southport, south of the city of Elmira, to its eastern terminus at an interchange with NY 17 in the town of Chemung.  Between those two towns, the highway passes through the town of Ashland and serves the village of Wellsburg.  Much of NY 427 follows the Chemung River.

The Leader (Corning): The Leader is an American daily newspaper published in Corning, New York.  It is owned by GateHouse Media.

Chemung Canal: The Chemung Canal is a former canal in New York, United States.  The canal connected Seneca Lake at Watkins Glen to the Chemung River at Elmira, New York.  It was planned to connect the Finger Lakes region and Pennsylvania's Susquehanna River watershed with New York's Erie Canal system.  The latter connected the Great Lakes with the Hudson River and ultimately the Atlantic port of New York City.

The New York Sun: The New York Sun was an American daily newspaper published in Manhattan from 2002 to 2008.  It debuted on April 16, 2002, adopting the name, motto, and masthead of the earlier New York paper, "The Sun" (1833–1950).  It became the first general-interest broadsheet newspaper to be started in New York City in several decades.  Its op-ed page became a prominent platform in the country for conservative viewpoints.  Since 2009 "The Sun" has operated as an online-only publisher of political and economic opinion pieces, as well as occasional arts content.

Corning (city), New York: Corning is a city in Steuben County, New York, United States, on the Chemung River.  The population was 11,183 at the 2010 census.  It is named for Erastus Corning, an Albany financier and railroad executive who was an investor in the company that developed the community.

Chemung County Historical Society: The Chemung County Historical Society is headquartered in the historic Chemung Canal Bank Building in Elmira, New York.  It is dedicated to the collection, preservation, and presentation of the history of the Chemung River Valley region.  The society was founded in 1923 and first chartered by New York State in 1947.  It is accredited by the American Alliance of Museums, and currently operates two cultural repositories, the Chemung Valley History Museum and the Booth Library, both as non-profit educational institutions.

Washington Times-Herald: The Washington Times-Herald (1939–1954) was an American daily newspaper published in Washington, D.C. It was created by Eleanor "Cissy" Patterson of the Medill–McCormick–Patterson family (long-time owners of the "Chicago Tribune" and the "New York Daily News" and founding later "Newsday" on New York's Long Island) when she bought the "Washington Times" and the "Herald" from the syndicate newspaper publisher William Randolph Hearst (1863–1951), and merged them.  The result was a "24-hour" newspaper, with 10 editions per day, from morning to evening.

Chemung, New York: Chemung is a town in Chemung County, New York, United States.  The population was 2,563 at the 2010 census.  The town name is derived from the Chemung River, which means "Big Horn" in the native language.

Cohocton River: The Cohocton River, sometimes referred to as the Conhocton River, is a 58.5 mi tributary of the Chemung River in western New York in the United States.  Via the Chemung River, it is part of the Susquehanna River watershed, flowing to Chesapeake Bay.  The name "Cohocton" is derived from an Iroquois term, "Ga-ha-to", meaning "log floating in the water" or "trees in the water".

Supporting paragraphs: The Leader (Corning) Corning (city), New York
Answer: Corning