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: Mekong River | Statement: [Lancang River, upstreamNameOf, Mekong River]

Target entity: Mekong River
Context triple: [Lancang River, upstreamNameOf, Mekong River]

• A. Mekong River chosen
  The Mekong River is one of Asia’s longest and most important rivers, flowing from the Tibetan Plateau through several Southeast Asian countries before emptying into the South China Sea.
• B. Se Kong River
  The Se Kong River is a major tributary of the Mekong River that flows through Laos, Vietnam, and Cambodia, supporting regional ecosystems and local livelihoods.
• C. Batang Hari River
  The Batang Hari River is the longest river in Sumatra, Indonesia, flowing through several provinces and serving as an important waterway for transportation, agriculture, and local communities.
• D. Nam Ngum River
  The Nam Ngum River is a significant river in Laos known for its large hydropower dam and reservoir, which play a key role in the country’s electricity production and irrigation.
• E. Namoi River
  The Namoi River is a major inland river in New South Wales, Australia, flowing through rich agricultural regions before joining the Barwon–Darling river system.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target predicate: upstreamNameOf
Context triple: [Lancang River, upstreamNameOf, Mekong River]

• A. upstreamNameVariant chosen
  Indicates that one name is an alternative or variant form of another name that is considered the primary or source (upstream) version.
• B. upstreamFrom
  Indicates that one entity is located or occurs earlier in the flow or sequence relative to another, typically in a direction opposite to the main movement or progression.
• C. upstreamCity
  Indicates that one city is located upstream along a river or waterway relative to another city.
• D. downstreamFrom
  Indicates that one entity is located or occurs at a point further along the natural flow or direction of another entity, typically in a linear or directional system such as a river, pipeline, or process sequence.
• E. upstreamDam
  Indicates that one entity is located or positioned upstream of another entity in relation to a dam, typically affecting or influenced by the dam’s presence or operation.
• F. None of above.