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 | Statement: [Tibetan Empire, notableEvent, Treaty of 821–822]

Target entity: Treaty of 821–822
Context triple: [Tibetan Empire, notableEvent, Treaty of 821–822]

• A. Treaty of Kurekchay
  The Treaty of Kurekchay was an 1805 agreement that brought the Karabakh Khanate under the suzerainty of the Russian Empire, marking a key step in Russia’s expansion into the South Caucasus.
• B. Treaty of 821–822 between Tibet and Tang China chosen
  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.
• C. Treaty of 562
  The Treaty of 562 was a peace agreement between the Byzantine Empire and the Sasanian Empire that concluded the protracted Lazic War and temporarily stabilized their frontier in the Caucasus region.
• 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. Treaty of Zuhab
  The Treaty of Zuhab was a 1639 peace agreement between the Ottoman Empire and Safavid Persia that largely fixed the modern border between Turkey and Iran and ended a long period of Ottoman–Safavid rivalry.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.