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: Witham Navigable Drains | Statement: [Grand Sluice at Boston, locatedDownstreamOf, Witham Navigable Drains]

Target entity: Witham Navigable Drains
Context triple: [Grand Sluice at Boston, locatedDownstreamOf, Witham Navigable Drains]

• A. Witham Navigable Drains chosen
  Witham Navigable Drains are a network of artificial drainage channels in Lincolnshire, England, engineered to manage water levels and provide navigation linked to the River Witham.
• B. River Wey Navigation
  The River Wey Navigation is a historic canalised river in Surrey, England, forming part of one of the country’s earliest navigable waterways and linking the River Wey to the River Thames.
• C. Grantham Canal
  The Grantham Canal is a historic English waterway in the East Midlands that once linked the town of Grantham to the national canal network, primarily serving 18th- and 19th-century trade and now valued for leisure and wildlife.
• D. Kennet and Avon Canal
  The Kennet and Avon Canal is a historic English waterway linking the River Thames at Reading with the River Avon at Bath, renowned for its 19th-century engineering and scenic cruising route.
• E. Calder and Hebble Navigation
  Calder and Hebble Navigation is a historic canal in West Yorkshire, England, forming part of the region’s inland waterway network and linking various industrial towns along the River Calder.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.