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: River South Esk estuary | Statement: [Montrose Basin, partOf, River South Esk estuary]

Target entity: River South Esk estuary
Context triple: [Montrose Basin, partOf, River South Esk estuary]

• A. River South Esk chosen
  River South Esk is a Scottish river flowing through the county of Angus from the Grampian Mountains to the North Sea at Montrose.
• B. Ribble estuary
  The Ribble estuary is a coastal inlet in northwest England where the River Ribble meets the Irish Sea, noted for its extensive saltmarshes and importance as a habitat for migratory birds.
• C. River Lee estuary
  The River Lee estuary is the tidal lower reach of the River Lee in County Cork, Ireland, where the river broadens and meets Cork Harbour before flowing into the Celtic Sea.
• D. Forth estuary
  The Forth estuary is the tidal mouth of Scotland’s River Forth, forming a broad inlet on the country’s east coast that has long been important for shipping, industry, and iconic bridges such as the Forth Bridge.
• E. River Esk
  The River Esk is a Scottish river that flows through Midlothian and East Lothian, passing towns such as Musselburgh before reaching the North Sea via the Firth of Forth.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.