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: Fort Robinson massacre | Statement: [Northern Cheyenne Exodus, hasPart, Fort Robinson massacre]

Target entity: Fort Robinson massacre
Context triple: [Northern Cheyenne Exodus, hasPart, Fort Robinson massacre]

• A. Washita Massacre
  The Washita Massacre was an 1868 U.S. Army attack led by George Armstrong Custer on a Southern Cheyenne village in present-day Oklahoma, resulting in the deaths of many Native American men, women, and children and becoming a symbol of the violence of the Indian Wars.
• B. Indian Creek massacre
  The Indian Creek massacre was an 1832 attack during the Black Hawk War in which a group of Potawatomi and Sauk warriors killed and captured settlers near present-day Earlville, Illinois.
• C. 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.
• 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. Coushatta Massacre
  The Coushatta Massacre was an 1874 Reconstruction-era attack in Louisiana in which members of the White League murdered Republican officeholders and freedmen to undermine Black political rights and restore white supremacist control.
• 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: Fort Robinson massacre
Triple: [Northern Cheyenne Exodus, hasPart, Fort Robinson massacre]

The Fort Robinson massacre was a violent 1879 U.S. Army attack and subsequent deaths of Northern Cheyenne people imprisoned at Fort Robinson, Nebraska, during their attempt to escape confinement and return to their homeland.

Target entity: Fort Robinson massacre
Target entity description: The Fort Robinson massacre was a violent 1879 U.S. Army attack and subsequent deaths of Northern Cheyenne people imprisoned at Fort Robinson, Nebraska, during their attempt to escape confinement and return to their homeland.

• A. Washita Massacre
  The Washita Massacre was an 1868 U.S. Army attack led by George Armstrong Custer on a Southern Cheyenne village in present-day Oklahoma, resulting in the deaths of many Native American men, women, and children and becoming a symbol of the violence of the Indian Wars.
• B. Indian Creek massacre
  The Indian Creek massacre was an 1832 attack during the Black Hawk War in which a group of Potawatomi and Sauk warriors killed and captured settlers near present-day Earlville, Illinois.
• C. 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.
• 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. Coushatta Massacre
  The Coushatta Massacre was an 1874 Reconstruction-era attack in Louisiana in which members of the White League murdered Republican officeholders and freedmen to undermine Black political rights and restore white supremacist control.
• F. None of above. chosen