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: 1890 British Ultimatum to Portugal | Statement: [Pink Map, relatedEvent, 1890 British Ultimatum to Portugal]

Target entity: 1890 British Ultimatum to Portugal
Context triple: [Pink Map, relatedEvent, 1890 British Ultimatum to Portugal]

• A. British Ultimatum of 1890 chosen
  The British Ultimatum of 1890 was a diplomatic demand by the United Kingdom that forced Portugal to abandon its colonial ambitions of linking Angola and Mozambique in southern Africa, triggering a major political crisis and nationalist backlash in Portugal.
• B. Portuguese occupation of Muscat
  The Portuguese occupation of Muscat was a period in the 16th and 17th centuries when the Portuguese Empire controlled the strategic Omani port city as part of its Indian Ocean trading network.
• C. Heligoland–Zanzibar Treaty of 1890
  The Heligoland–Zanzibar Treaty of 1890 was an agreement between the German Empire and the United Kingdom that redefined their colonial spheres of influence in Africa, notably granting Germany control of Heligoland in exchange for recognizing British dominance in Zanzibar and other territories.
• D. British control of the Straits Zone
  British control of the Straits Zone was the post-World War I British military and administrative occupation of the strategic Turkish Straits area, aimed at securing naval access between the Mediterranean and the Black Sea and enforcing Allied terms on the defeated Ottoman Empire.
• E. Portuguese capture of Tangier
  The Portuguese capture of Tangier was a 15th-century military campaign in which Portugal sought to expand its North African holdings by seizing the strategic port city of Tangier from Muslim rule.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.