Triple

T9199218
Position Surface form Disambiguated ID Type / Status
Subject Amtrak Northeast Corridor routes E220792 entity
Predicate connects P390 FINISHED
Object Baltimore–Washington metropolitan area E61116 NE FINISHED

How this triple was built (2 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
Instruction
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).
Input
Phrase: Baltimore–Washington metropolitan area | Statement: [Amtrak Northeast Corridor routes, connects, Baltimore–Washington metropolitan area]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Baltimore–Washington metropolitan area
Context triple: [Amtrak Northeast Corridor routes, connects, Baltimore–Washington metropolitan area]
  • A. Baltimore–Washington metropolitan area chosen
    The Baltimore–Washington metropolitan area is a major combined urban region in the Mid-Atlantic United States centered on the cities of Baltimore, Maryland, and Washington, D.C., known for its dense population, federal government presence, and diverse economy.
  • B. Metropolregion MD
    Metropolregion MD is a central German metropolitan region encompassing major cities and economic centers in the states of Saxony, Saxony-Anhalt, and Thuringia, focused on regional development and cooperation.
  • C. Salisbury, Maryland–Delaware metropolitan area
    The Salisbury, Maryland–Delaware metropolitan area is a bi-state region centered on the city of Salisbury that encompasses parts of Maryland and Delaware on the Delmarva Peninsula and functions as a regional hub for commerce, healthcare, and education.
  • D. Washington metropolitan area
    The Washington metropolitan area is a major U.S. urban region centered on the nation’s capital, encompassing Washington, D.C. and its surrounding suburbs in Maryland, Virginia, and West Virginia.
  • E. Jamestown metropolitan area
    The Jamestown metropolitan area is a U.S. Census-defined region in southwestern New York centered on the city of Jamestown and its surrounding communities.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69ca83e8e9248190862cf3e41693b310 completed March 30, 2026, 2:08 p.m.
NER Named-entity recognition batch_69ccd880ab808190aa785a5f1e5d5976 completed April 1, 2026, 8:34 a.m.
NED1 Entity disambiguation (via context triple) batch_69d065d8f358819085dec73f25fd5746 completed April 4, 2026, 1:14 a.m.
Created at: March 30, 2026, 7:25 p.m.