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: Ostsiedlung | Statement: [Margraviate of Meissen, playedRoleIn, Ostsiedlung]

Target entity: Ostsiedlung
Context triple: [Margraviate of Meissen, playedRoleIn, Ostsiedlung]

• A. Ostsiedlung chosen
  Ostsiedlung was the medieval eastward expansion and settlement movement of German-speaking populations into Slavic and other non-Germanic regions of Central and Eastern Europe, reshaping the area’s demographic, cultural, and political landscape.
• B. Great Moravia
  Great Moravia was a 9th-century Slavic state in Central Europe that became an important early center of Slavic culture, Christianity, and political organization.
• C. Holy Roman Empire
  The Holy Roman Empire was a multi-ethnic complex of territories in Central Europe that existed from the early Middle Ages until 1806, centered on the German lands and ruled by an emperor who claimed a continuation of the legacy of the ancient Roman Empire.
• D. German eastward expansion (Ostsiedlung)
  German eastward expansion (Ostsiedlung) was the medieval migration and settlement movement by German-speaking populations into Central and Eastern Europe, reshaping the region’s demographic, cultural, and political landscape.
• E. Medieval Central Europe
  Medieval Central Europe was a historically contested region of kingdoms and tribal confederations whose shifting frontiers, cultures, and power struggles—including conflicts like the Avar wars—shaped the political and cultural landscape of the European Middle Ages.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.