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: Indo-Gangetic river system | Statement: [Son River, partOf, Indo-Gangetic river system]

Target entity: Indo-Gangetic river system
Context triple: [Son River, partOf, Indo-Gangetic river system]

• A. Indo-Gangetic river system chosen
  The Indo-Gangetic river system is a vast network of major rivers and tributaries in northern India and surrounding regions that drains the Indo-Gangetic Plain and supports some of the world’s most densely populated and agriculturally productive areas.
• B. Ganges-Brahmaputra-Meghna river system
  The Ganges-Brahmaputra-Meghna river system is one of the world’s largest and most densely populated river basins, spanning the Himalayas to the Bay of Bengal and supporting hundreds of millions of people in South Asia.
• C. Ganges Basin
  The Ganges Basin is the vast river drainage system in northern India and neighboring countries that supports hundreds of millions of people through its fertile plains and extensive network of tributaries.
• D. Indus River basin
  The Indus River basin is a vast drainage area in South Asia centered on the Indus River, supporting major agricultural regions and dense populations across parts of Pakistan, India, China, and Afghanistan.
• E. Upper Ganges-Yamuna Doab
  The Upper Ganges-Yamuna Doab is a fertile alluvial region in northern India between the Ganges and Yamuna rivers, known for its intensive agriculture and dense rural-urban settlements.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.