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: lower Sacramento River | Statement: [Keswick Reservoir, isUpstreamOf, lower Sacramento River]

Target entity: lower Sacramento River
Context triple: [Keswick Reservoir, isUpstreamOf, lower Sacramento River]

• A. Little Sacramento River
  The Little Sacramento River is a tributary stream in Northern California that feeds into Shasta Lake as part of the upper Sacramento River watershed.
• B. Sacramento River chosen
  The Sacramento River is the longest river entirely within California, flowing through the northern part of the state and serving as a major source of water, transportation, and ecological habitat.
• C. Middle Fork American River
  The Middle Fork American River is a popular whitewater rafting and kayaking destination in California’s Sierra Nevada, known for its scenic canyon, challenging rapids, and historic gold-mining sites.
• D. Sacramento River and San Joaquin River
  The Sacramento River and San Joaquin River are the two largest rivers in California’s Central Valley, whose combined waters drain much of the state’s interior before flowing into the San Francisco Bay.
• E. Middle Fork San Joaquin River
  The Middle Fork San Joaquin River is a major Sierra Nevada waterway in California that flows through the Ansel Adams Wilderness and Devils Postpile National Monument, featuring notable cascades such as Rainbow Falls.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.