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: Elan Valley waterworks scheme | Statement: [Caban Coch Reservoir, partOf, Elan Valley waterworks scheme]

Target entity: Elan Valley waterworks scheme
Context triple: [Caban Coch Reservoir, partOf, Elan Valley waterworks scheme]

• A. Elan Valley reservoirs chosen
  The Elan Valley reservoirs are a series of scenic man-made lakes in mid-Wales, created in the late 19th and early 20th centuries to supply water to Birmingham and now renowned for their dams, wildlife, and outdoor recreation.
• B. Derwent hydropower scheme
  The Derwent hydropower scheme is a system of hydroelectric power stations and associated infrastructure that harnesses the flow of the River Derwent to generate renewable electricity.
• C. Chew Valley water supply system
  The Chew Valley water supply system is an integrated network of reservoirs, treatment works, and pipelines in the Chew Valley area that provides potable water to surrounding communities.
• D. Avon Aqueduct
  The Avon Aqueduct is a historic 19th-century Scottish aqueduct that carries the Union Canal over the River Avon near Linlithgow, and is one of the largest aqueducts of its kind in the United Kingdom.
• E. Tummel hydroelectric scheme
  The Tummel hydroelectric scheme is a major Scottish power project comprising a series of dams, reservoirs, and power stations that harness the waters of the River Tummel and its tributaries to generate electricity.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.