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: Mature Harappan period | Statement: [Kalibangan, timePeriod, Mature Harappan period]

Target entity: Mature Harappan period
Context triple: [Kalibangan, timePeriod, Mature Harappan period]

• A. Mature Harappan period chosen
  The Mature Harappan period was the peak urban phase of the Indus Valley Civilization, marked by advanced city planning, standardized weights and measures, and extensive trade networks across South Asia and beyond.
• B. Late Harappan period
  The Late Harappan period was the final phase of the Indus Valley Civilization, marked by urban decline, regionalization, and cultural transitions that set the stage for early Vedic society in the Indian subcontinent.
• C. Early Harappan phase of the Indus Valley Civilization
  The Early Harappan phase of the Indus Valley Civilization was the formative period (c. 3300–2600 BCE) during which regional farming and craft communities evolved toward the urban, planned cities and complex social organization characteristic of the Mature Harappan era.
• D. Vedic period
  The Vedic period is an ancient era of South Asian history marked by the composition of the Vedas and the early development of Vedic culture and religion.
• E. Sangam period
  The Sangam period was an ancient era of Tamil history marked by flourishing literature, powerful dynasties like the Pandyas, and vibrant urban and maritime culture in South India.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.