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: Oregon boundary dispute | Statement: [Convention of 1818, involves, Oregon boundary dispute]

Target entity: Oregon boundary dispute
Context triple: [Convention of 1818, involves, Oregon boundary dispute]

• A. Toledo War
  The Toledo War was a 19th-century boundary dispute between the U.S. states of Ohio and Michigan over control of the Toledo Strip, resolved largely through political negotiation rather than armed conflict.
• B. Nez Perce War
  The Nez Perce War was an 1877 conflict in which the U.S. Army pursued the Nez Perce tribe across the Pacific Northwest as they attempted a strategic retreat toward Canada rather than submit to forced relocation.
• C. Oregon territorial period
  The Oregon territorial period was the era from 1848 to 1859 when the region that would become the state of Oregon was governed as a U.S. territory with its own appointed and elected officials.
• D. Modoc War
  The Modoc War was an 1872–1873 armed conflict in northern California and southern Oregon between the Modoc people and the United States Army, notable for its protracted guerrilla fighting in the Lava Beds and the execution of Modoc leader Captain Jack.
• E. Oregon Treaty of 1846 chosen
  The Oregon Treaty of 1846 was an agreement between the United States and Great Britain that peacefully settled their competing claims in the Pacific Northwest by establishing the 49th parallel as the boundary west of the Rocky Mountains.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.