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 Nymphaeum (1261) | Statement: [Empire of Nicaea, treaty, Treaty of Nymphaeum (1261)]

Target entity: Treaty of Nymphaeum (1261)
Context triple: [Empire of Nicaea, treaty, Treaty of Nymphaeum (1261)]

• A. Treaty of Nymphaeum (1214)
  The Treaty of Nymphaeum (1214) was an agreement between the Empire of Nicaea and the Republic of Venice that secured Venetian commercial privileges and naval support in exchange for backing Nicaea’s efforts to recover Constantinople from Latin rule.
• B. Treaty of Nymphaeum chosen
  The Treaty of Nymphaeum was a 1261 alliance between the Byzantine Empire and the Republic of Genoa that granted Genoa extensive commercial privileges and helped establish its dominance in Black Sea trade.
• C. Treaty of Kardis
  The Treaty of Kardis was a 1661 peace agreement between Sweden and Russia that confirmed Swedish control over territories in the Baltic region at the end of the Russo-Swedish War.
• D. Treaty of Ayastefanos
  The Treaty of Ayastefanos was an 1878 peace agreement between the Russian and Ottoman Empires that ended the Russo-Turkish War and proposed a large autonomous Bulgaria, significantly reshaping the Balkans before being revised by the Congress of Berlin.
• E. Treaty of 435
  The Treaty of 435 was an agreement between the Western Roman Empire and the Vandal Kingdom that formally recognized Vandal control over parts of North Africa in exchange for peace and tribute.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.