Triple

T21410902
Position Surface form Disambiguated ID Type / Status
Subject Three Rivers Heritage Trail segments within Pittsburgh E528163 entity
Predicate hasSegment P3574 FINISHED
Object Millvale riverfront segment — NE NERFINISHED

How this triple was built (3 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: Millvale riverfront segment | Statement: [Three Rivers Heritage Trail segments within Pittsburgh, hasSegment, Millvale riverfront segment]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Millvale riverfront segment
Context triple: [Three Rivers Heritage Trail segments within Pittsburgh, hasSegment, Millvale riverfront segment]
  • A. Schuylkill River waterfront
    The Schuylkill River waterfront is a developed riverside area along the Schuylkill River featuring recreational paths, scenic views, and mixed-use urban spaces.
  • B. Allegheny River waterfront
    The Allegheny River waterfront is a stretch of riverfront along the Allegheny River featuring recreational, scenic, and community spaces in and around New Kensington, Pennsylvania.
  • C. Harrisburg riverfront
    The Harrisburg riverfront is a scenic urban area along the Susquehanna River in Harrisburg, Pennsylvania, featuring parks, trails, historic structures, and recreational spaces.
  • D. Monongahela Riverfront Park
    Monongahela Riverfront Park is a public recreational green space along the Monongahela River in Monongahela, Pennsylvania, featuring walking paths, river views, and community gathering areas.
  • E. Schuylkill Yards development area
    Schuylkill Yards development area is a major mixed-use innovation district under development in University City, Philadelphia, featuring offices, labs, residential space, and public parks near 30th Street Station.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Millvale riverfront segment
Target entity description: The Millvale riverfront segment is a stretch of multi-use recreational trail along the Allegheny River in Millvale, Pennsylvania, forming part of Pittsburgh’s larger Three Rivers Heritage Trail system.
  • A. Schuylkill River waterfront
    The Schuylkill River waterfront is a developed riverside area along the Schuylkill River featuring recreational paths, scenic views, and mixed-use urban spaces.
  • B. Allegheny River waterfront
    The Allegheny River waterfront is a stretch of riverfront along the Allegheny River featuring recreational, scenic, and community spaces in and around New Kensington, Pennsylvania.
  • C. Harrisburg riverfront
    The Harrisburg riverfront is a scenic urban area along the Susquehanna River in Harrisburg, Pennsylvania, featuring parks, trails, historic structures, and recreational spaces.
  • D. Monongahela Riverfront Park
    Monongahela Riverfront Park is a public recreational green space along the Monongahela River in Monongahela, Pennsylvania, featuring walking paths, river views, and community gathering areas.
  • E. Schuylkill Yards development area
    Schuylkill Yards development area is a major mixed-use innovation district under development in University City, Philadelphia, featuring offices, labs, residential space, and public parks near 30th Street Station.
  • F. None of above. chosen

Provenance (2 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_69e0c454c248819093425d1099101c09 completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69e8b1b6595481908cdf915e3585ed08 completed April 22, 2026, 11:32 a.m.
Created at: April 16, 2026, 5:43 p.m.