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: San Antonio River Tunnel | Statement: [San Antonio River, hasStructure, San Antonio River Tunnel]

Target entity: San Antonio River Tunnel
Context triple: [San Antonio River, hasStructure, San Antonio River Tunnel]

• A. O'Neill Tunnel
  The O'Neill Tunnel is a major highway tunnel in downtown Boston that carries Interstate 93 beneath the city as part of the Big Dig project.
• B. Eisenhower–Johnson Memorial Tunnel
  The Eisenhower–Johnson Memorial Tunnel is a high-altitude vehicular tunnel through the Rocky Mountains in Colorado, carrying Interstate 70 beneath the Continental Divide.
• C. Clyde Tunnel
  The Clyde Tunnel is a road tunnel in Glasgow, Scotland, carrying vehicular traffic beneath the River Clyde to connect the city’s north and south banks.
• D. Tehachapi Crossing tunnels
  The Tehachapi Crossing tunnels are a series of large water conveyance tunnels that carry California Aqueduct flows beneath the Tehachapi Mountains as part of the State Water Project.
• E. Baltimore Harbor Tunnel
  The Baltimore Harbor Tunnel is a vehicular tunnel in Baltimore, Maryland, that carries Interstate 895 beneath the harbor as a major route for traffic bypassing downtown.
• 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: San Antonio River Tunnel
Triple: [San Antonio River, hasStructure, San Antonio River Tunnel]

The San Antonio River Tunnel is a major flood-control tunnel in San Antonio, Texas, designed to divert excess river water and protect the downtown and River Walk areas from flooding.

Target entity: San Antonio River Tunnel
Target entity description: The San Antonio River Tunnel is a major flood-control tunnel in San Antonio, Texas, designed to divert excess river water and protect the downtown and River Walk areas from flooding.

• A. O'Neill Tunnel
  The O'Neill Tunnel is a major highway tunnel in downtown Boston that carries Interstate 93 beneath the city as part of the Big Dig project.
• B. Eisenhower–Johnson Memorial Tunnel
  The Eisenhower–Johnson Memorial Tunnel is a high-altitude vehicular tunnel through the Rocky Mountains in Colorado, carrying Interstate 70 beneath the Continental Divide.
• C. Clyde Tunnel
  The Clyde Tunnel is a road tunnel in Glasgow, Scotland, carrying vehicular traffic beneath the River Clyde to connect the city’s north and south banks.
• D. Tehachapi Crossing tunnels
  The Tehachapi Crossing tunnels are a series of large water conveyance tunnels that carry California Aqueduct flows beneath the Tehachapi Mountains as part of the State Water Project.
• E. Baltimore Harbor Tunnel
  The Baltimore Harbor Tunnel is a vehicular tunnel in Baltimore, Maryland, that carries Interstate 895 beneath the harbor as a major route for traffic bypassing downtown.
• F. None of above. chosen