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: Shipka Pass series | Statement: [Vasily Vereshchagin, notableWork, Shipka Pass series]

Target entity: Shipka Pass series
Context triple: [Vasily Vereshchagin, notableWork, Shipka Pass series]

• A. Battle in the Varbitsa Pass
  The Battle in the Varbitsa Pass was a decisive 811 AD clash in which the Bulgarian forces under Khan Krum annihilated the Byzantine army of Emperor Nikephoros I, significantly shifting the balance of power in the Balkans.
• B. Lord of Skopje
  Lord of Skopje was a medieval noble title held by Serbian magnate Vuk Branković, denoting his rule over the important Balkan city of Skopje during the late 14th century.
• C. Shipka Pass operations chosen
  Shipka Pass operations were a series of crucial battles in the Balkan Mountains during the Russo-Turkish War of 1877–1878, where Russian and Bulgarian forces defended the strategic Shipka Pass against repeated Ottoman attacks.
• D. Lord of Prizren
  Lord of Prizren was a medieval Serbian noble title associated with the powerful Branković family’s rule over the important city of Prizren in the late 14th century.
• E. Lord of Krujë
  Lord of Krujë was the feudal title held by the Albanian national hero Skanderbeg as ruler and defender of the strategic fortress city of Krujë during his resistance against the Ottoman Empire.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.