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 1251 with the Livonian Order | Statement: [Mindaugas, treaty, Treaty of 1251 with the Livonian Order]

Target entity: Treaty of 1251 with the Livonian Order
Context triple: [Mindaugas, treaty, Treaty of 1251 with the Livonian Order]

• A. Treaty of Melno
  The Treaty of Melno was a 1422 peace agreement that ended the Gollub War between the Teutonic Order and the Kingdom of Poland–Lithuania, establishing a long-lasting border in the Baltic region.
• B. Treaty of Nöteborg
  The Treaty of Nöteborg was a 1323 peace agreement between Sweden and the Novgorod Republic that established one of the first formal borders between Western and Eastern powers in northern Europe, particularly in the Karelian region.
• C. Treaty of Königsberg (1656)
  The Treaty of Königsberg (1656) was an agreement during the Second Northern War in which Brandenburg-Prussia aligned with Sweden, shaping the subsequent territorial and political settlements in the region.
• D. Treaty of Stralsund (1370)
  The Treaty of Stralsund (1370) was a landmark peace agreement that ended the war between the Hanseatic League and Denmark, securing the League major commercial privileges and dominance over Baltic trade.
• E. Treaty of Greifswald
  The Treaty of Greifswald was an agreement concluded during the Great Northern War that helped reshape territorial control in Northern Europe by redistributing Swedish-held lands among its adversaries.
• 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 1251 with the Livonian Order
Triple: [Mindaugas, treaty, Treaty of 1251 with the Livonian Order]

The Treaty of 1251 with the Livonian Order was an agreement by which Lithuanian ruler Mindaugas accepted Christianity and secured recognition of his royal title in exchange for ceding some western lands to the Livonian Order.

Target entity: Treaty of 1251 with the Livonian Order
Target entity description: The Treaty of 1251 with the Livonian Order was an agreement by which Lithuanian ruler Mindaugas accepted Christianity and secured recognition of his royal title in exchange for ceding some western lands to the Livonian Order.

• A. Treaty of Melno
  The Treaty of Melno was a 1422 peace agreement that ended the Gollub War between the Teutonic Order and the Kingdom of Poland–Lithuania, establishing a long-lasting border in the Baltic region.
• B. Treaty of Nöteborg
  The Treaty of Nöteborg was a 1323 peace agreement between Sweden and the Novgorod Republic that established one of the first formal borders between Western and Eastern powers in northern Europe, particularly in the Karelian region.
• C. Treaty of Königsberg (1656)
  The Treaty of Königsberg (1656) was an agreement during the Second Northern War in which Brandenburg-Prussia aligned with Sweden, shaping the subsequent territorial and political settlements in the region.
• D. Treaty of Stralsund (1370)
  The Treaty of Stralsund (1370) was a landmark peace agreement that ended the war between the Hanseatic League and Denmark, securing the League major commercial privileges and dominance over Baltic trade.
• E. Treaty of Greifswald
  The Treaty of Greifswald was an agreement concluded during the Great Northern War that helped reshape territorial control in Northern Europe by redistributing Swedish-held lands among its adversaries.
• F. None of above. chosen