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: Marias River | Statement: [Missouri River Basin, containsRiver, Marias River]

Target entity: Marias River
Context triple: [Missouri River Basin, containsRiver, Marias River]

• A. Renaico River
  The Renaico River is a Chilean watercourse in south-central Chile that serves as one of the tributaries feeding into the larger Biobío River basin.
• B. Loncomilla River
  The Loncomilla River is a significant watercourse in central Chile that serves as a major tributary of the Maule River, supporting agriculture and settlements in the surrounding region.
• C. Bojacá River
  The Bojacá River is a watercourse in the Cundinamarca department of central Colombia that flows through municipalities on the Bogotá savanna.
• D. Cautín River
  The Cautín River is a significant waterway in Chile’s Araucanía Region that flows through the city of Temuco and its surrounding agricultural and forested landscapes.
• E. Saltoro River
  The Saltoro River is a high-altitude river in the eastern Karakoram region that drains the Saltoro Range and flows into the Shyok River in the disputed Siachen–Baltistan area.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Entity: Marias River
Triple: [Missouri River Basin, containsRiver, Marias River]

The Marias River is a tributary in north-central Montana that flows eastward to join the Missouri River, draining a portion of the northern Great Plains.

Target entity: Marias River
Target entity description: The Marias River is a tributary in north-central Montana that flows eastward to join the Missouri River, draining a portion of the northern Great Plains.

• A. Renaico River
  The Renaico River is a Chilean watercourse in south-central Chile that serves as one of the tributaries feeding into the larger Biobío River basin.
• B. Loncomilla River
  The Loncomilla River is a significant watercourse in central Chile that serves as a major tributary of the Maule River, supporting agriculture and settlements in the surrounding region.
• C. Bojacá River
  The Bojacá River is a watercourse in the Cundinamarca department of central Colombia that flows through municipalities on the Bogotá savanna.
• D. Cautín River
  The Cautín River is a significant waterway in Chile’s Araucanía Region that flows through the city of Temuco and its surrounding agricultural and forested landscapes.
• E. Saltoro River
  The Saltoro River is a high-altitude river in the eastern Karakoram region that drains the Saltoro Range and flows into the Shyok River in the disputed Siachen–Baltistan area.
• F. None of above. chosen