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: Treaty of 821–822 between Tibet and Tang China | Statement: [Tibetan Empire, treaty, Treaty of 821–822 between Tibet and Tang China]

Target entity: Treaty of 821–822 between Tibet and Tang China
Context triple: [Tibetan Empire, treaty, Treaty of 821–822 between Tibet and Tang China]

• A. Sino-Nepalese Treaty of Peace and Friendship
  The Sino-Nepalese Treaty of Peace and Friendship is a 1960 agreement between China and Nepal that formally established diplomatic relations and laid the foundation for defining and managing their shared Himalayan border.
• B. Chanyuan Treaty
  The Chanyuan Treaty was an 11th-century peace agreement between the Song and Liao dynasties that established a long-lasting diplomatic and tributary relationship between the two states.
• C. Treaty of Kyakhta (1727)
  The Treaty of Kyakhta (1727) was an agreement between the Russian Empire and Qing China that fixed much of the Russo-Chinese border in Siberia and established Kyakhta as a key center of regulated cross-border trade.
• D. Treaty of 681 with the Byzantine Empire
  The Treaty of 681 with the Byzantine Empire was the agreement that formally recognized the First Bulgarian Empire as an independent state and marked the beginning of medieval Bulgaria’s presence on the European political map.
• E. Panglong Agreement
  The Panglong Agreement was a historic 1947 accord in Burma that laid the groundwork for the formation of the Union of Burma by promising autonomy and equal rights to various ethnic minority groups.
• 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: Treaty of 821–822 between Tibet and Tang China
Triple: [Tibetan Empire, treaty, Treaty of 821–822 between Tibet and Tang China]

The Treaty of 821–822 between Tibet and Tang China was a landmark peace agreement that formally delineated the border and established stable diplomatic relations between the Tibetan Empire and the Tang dynasty.

Target entity: Treaty of 821–822 between Tibet and Tang China
Target entity description: The Treaty of 821–822 between Tibet and Tang China was a landmark peace agreement that formally delineated the border and established stable diplomatic relations between the Tibetan Empire and the Tang dynasty.

• A. Sino-Nepalese Treaty of Peace and Friendship
  The Sino-Nepalese Treaty of Peace and Friendship is a 1960 agreement between China and Nepal that formally established diplomatic relations and laid the foundation for defining and managing their shared Himalayan border.
• B. Chanyuan Treaty
  The Chanyuan Treaty was an 11th-century peace agreement between the Song and Liao dynasties that established a long-lasting diplomatic and tributary relationship between the two states.
• C. Treaty of Kyakhta (1727)
  The Treaty of Kyakhta (1727) was an agreement between the Russian Empire and Qing China that fixed much of the Russo-Chinese border in Siberia and established Kyakhta as a key center of regulated cross-border trade.
• D. Treaty of 681 with the Byzantine Empire
  The Treaty of 681 with the Byzantine Empire was the agreement that formally recognized the First Bulgarian Empire as an independent state and marked the beginning of medieval Bulgaria’s presence on the European political map.
• E. Panglong Agreement
  The Panglong Agreement was a historic 1947 accord in Burma that laid the groundwork for the formation of the Union of Burma by promising autonomy and equal rights to various ethnic minority groups.
• F. None of above. chosen