Triple

T9683051
Position Surface form Disambiguated ID Type / Status
Subject Chelten Avenue station E234332 entity
Predicate isOnCorridor P1018 FINISHED
Object Chestnut Hill Branch (former Pennsylvania Railroad) E28964 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: Chestnut Hill Branch (former Pennsylvania Railroad) | Statement: [Chelten Avenue station, isOnCorridor, Chestnut Hill Branch (former Pennsylvania Railroad)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chestnut Hill Branch (former Pennsylvania Railroad)
Context triple: [Chelten Avenue station, isOnCorridor, Chestnut Hill Branch (former Pennsylvania Railroad)]
  • A. Doylestown Branch
    The Doylestown Branch is a former Reading Railroad commuter rail line in southeastern Pennsylvania that connected Philadelphia with the town of Doylestown.
  • B. Chestnut Hill East Line
    Chestnut Hill East Line is a commuter rail service in the Philadelphia area operated as part of SEPTA’s Regional Rail network.
  • C. Chestnut Hill West Line chosen
    The Chestnut Hill West Line is a commuter rail service in the Philadelphia area that connects Center City with the Chestnut Hill neighborhood.
  • D. Chestnut Hill East station
    Chestnut Hill East station is a SEPTA Regional Rail station in Philadelphia serving as the northern endpoint of the Chestnut Hill East Line.
  • E. Chestnut Hill West station
    Chestnut Hill West station is a SEPTA Regional Rail station in the Chestnut Hill neighborhood of Philadelphia serving as the northern endpoint of the Chestnut Hill West Line.
  • 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_69ca84c99e34819092e5563a7106cfca completed March 30, 2026, 2:12 p.m.
NER Named-entity recognition batch_69cd9ccdbcc48190a4a9a70b3f419ac2 completed April 1, 2026, 10:31 p.m.
NED1 Entity disambiguation (via context triple) batch_69d1910192e88190b10409ae62c1c948 completed April 4, 2026, 10:30 p.m.
Created at: March 30, 2026, 8:16 p.m.