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: Mountain Meadows massacre | Statement: [Utah Territory, significantEvent, Mountain Meadows massacre]

Target entity: Mountain Meadows massacre
Context triple: [Utah Territory, significantEvent, Mountain Meadows massacre]

• A. Sand Creek Massacre
  The Sand Creek Massacre was an 1864 attack in which Colorado U.S. volunteer cavalry brutally killed and mutilated a large number of Cheyenne and Arapaho people, many of them women and children, in one of the most infamous atrocities against Native Americans in U.S. history.
• B. Wyoming Massacre
  The Wyoming Massacre was a brutal 1778 American Revolutionary War attack in Pennsylvania’s Wyoming Valley, where British-allied Loyalist and Iroquois forces killed many American settlers.
• C. Camp Verde Indian massacre of 1875
  The Camp Verde Indian massacre of 1875 was a brutal attack in Arizona Territory in which U.S. forces killed and forcibly removed Yavapai people during the wider campaign of violence and displacement against Native Americans.
• D. Marais des Cygnes massacre
  The Marais des Cygnes massacre was an 1858 attack in Kansas Territory in which pro-slavery militants executed a group of free-state men, becoming one of the most notorious episodes of violence in the Bleeding Kansas conflict.
• E. 1860 Wiyot Massacre
  The 1860 Wiyot Massacre was a brutal attack by white settlers on the Wiyot people during their World Renewal Ceremony on Indian Island near Eureka, California, resulting in the killing of dozens of Native men, women, and children.
• 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: Mountain Meadows massacre
Triple: [Utah Territory, significantEvent, Mountain Meadows massacre]

The Mountain Meadows massacre was an 1857 mass killing of a wagon train of emigrants by Mormon militia and allied Native Americans in southern Utah, and is considered one of the darkest episodes in the history of the American West.

Target entity: Mountain Meadows massacre
Target entity description: The Mountain Meadows massacre was an 1857 mass killing of a wagon train of emigrants by Mormon militia and allied Native Americans in southern Utah, and is considered one of the darkest episodes in the history of the American West.

• A. Sand Creek Massacre
  The Sand Creek Massacre was an 1864 attack in which Colorado U.S. volunteer cavalry brutally killed and mutilated a large number of Cheyenne and Arapaho people, many of them women and children, in one of the most infamous atrocities against Native Americans in U.S. history.
• B. Wyoming Massacre
  The Wyoming Massacre was a brutal 1778 American Revolutionary War attack in Pennsylvania’s Wyoming Valley, where British-allied Loyalist and Iroquois forces killed many American settlers.
• C. Camp Verde Indian massacre of 1875
  The Camp Verde Indian massacre of 1875 was a brutal attack in Arizona Territory in which U.S. forces killed and forcibly removed Yavapai people during the wider campaign of violence and displacement against Native Americans.
• D. Marais des Cygnes massacre
  The Marais des Cygnes massacre was an 1858 attack in Kansas Territory in which pro-slavery militants executed a group of free-state men, becoming one of the most notorious episodes of violence in the Bleeding Kansas conflict.
• E. 1860 Wiyot Massacre
  The 1860 Wiyot Massacre was a brutal attack by white settlers on the Wiyot people during their World Renewal Ceremony on Indian Island near Eureka, California, resulting in the killing of dozens of Native men, women, and children.
• F. None of above. chosen