Triple

Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).

Phrase: East River | Statement: [Gunnison County, Colorado, traversedBy, East River]

Target entity: East River
Context triple: [Gunnison County, Colorado, traversedBy, East River]

• A. East River
  The East River is a tidal strait in New York City that separates Manhattan from Brooklyn and Queens and serves as a major waterway spanned by several iconic bridges.
• B. East River
  The East River is a tributary waterway in the Appalachian region of the United States that flows through southern West Virginia and into Virginia.
• C. Hudson River
  The Hudson River is a major waterway in eastern New York State that flows south past cities like Albany and New York City before emptying into the Atlantic Ocean at New York Harbor.
• D. Flushing Bay
  Flushing Bay is a tidal embayment in northern Queens, New York City, forming part of the East River and lying adjacent to major landmarks such as LaGuardia Airport and Citi Field.
• E. Bronx River
  The Bronx River is a freshwater river in southeastern New York that flows south through Westchester County into the Bronx, historically significant as an urban waterway and the focus of major conservation and restoration efforts.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Entity: East River
Triple: [Gunnison County, Colorado, traversedBy, East River]

The East River is a mountain river in Gunnison County, Colorado, that flows through the Elk Mountains and joins the Taylor River to form the Gunnison River.

Target entity: East River
Target entity description: The East River is a mountain river in Gunnison County, Colorado, that flows through the Elk Mountains and joins the Taylor River to form the Gunnison River.

• A. East River
  The East River is a tidal strait in New York City that separates Manhattan from Brooklyn and Queens and serves as a major waterway spanned by several iconic bridges.
• B. East River
  The East River is a tributary waterway in the Appalachian region of the United States that flows through southern West Virginia and into Virginia.
• C. Hudson River
  The Hudson River is a major waterway in eastern New York State that flows south past cities like Albany and New York City before emptying into the Atlantic Ocean at New York Harbor.
• D. Flushing Bay
  Flushing Bay is a tidal embayment in northern Queens, New York City, forming part of the East River and lying adjacent to major landmarks such as LaGuardia Airport and Citi Field.
• E. Bronx River
  The Bronx River is a freshwater river in southeastern New York that flows south through Westchester County into the Bronx, historically significant as an urban waterway and the focus of major conservation and restoration efforts.
• F. None of above. chosen