Triple

T21410900
Position Surface form Disambiguated ID Type / Status
Subject Three Rivers Heritage Trail segments within Pittsburgh E528163 entity
Predicate hasSegment P3574 FINISHED
Object Strip District Trail
Strip District Trail is a riverside multi-use path in Pittsburgh that runs through the historic Strip District neighborhood as part of the larger Three Rivers Heritage Trail system.
E1482130 NE FINISHED

How this triple was built (4 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: Strip District Trail | Statement: [Three Rivers Heritage Trail segments within Pittsburgh, hasSegment, Strip District Trail]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Strip District Trail
Context triple: [Three Rivers Heritage Trail segments within Pittsburgh, hasSegment, Strip District Trail]
  • A. Beltline Trail
    The Beltline Trail is a popular multi-use recreational path in Toronto that follows a former railway corridor through ravines and parkland.
  • B. Forest City Trail
    Forest City Trail is a hiking route on Vermont’s Camel’s Hump mountain, providing access through forested terrain to the summit area.
  • C. Atlanta BeltLine Eastside Trail
    The Atlanta BeltLine Eastside Trail is a popular multi-use urban trail in Atlanta that repurposes former railway corridors to connect neighborhoods, parks, and public art along the city’s east side.
  • D. Metropolitan Branch Trail
    The Metropolitan Branch Trail is an urban multi-use trail in Washington, D.C., that runs roughly parallel to the Red Line of the Metro, providing a key north–south route for cyclists and pedestrians between Union Station and neighborhoods to the northeast.
  • E. North Loop Trail
    North Loop Trail is a popular high-elevation hiking route on Mount Charleston near Las Vegas, known for its steep climbs, bristlecone pines, and access toward the summit.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Strip District Trail
Triple: [Three Rivers Heritage Trail segments within Pittsburgh, hasSegment, Strip District Trail]
Generated description
Strip District Trail is a riverside multi-use path in Pittsburgh that runs through the historic Strip District neighborhood as part of the larger Three Rivers Heritage Trail system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Strip District Trail
Target entity description: Strip District Trail is a riverside multi-use path in Pittsburgh that runs through the historic Strip District neighborhood as part of the larger Three Rivers Heritage Trail system.
  • A. Beltline Trail
    The Beltline Trail is a popular multi-use recreational path in Toronto that follows a former railway corridor through ravines and parkland.
  • B. Forest City Trail
    Forest City Trail is a hiking route on Vermont’s Camel’s Hump mountain, providing access through forested terrain to the summit area.
  • C. Atlanta BeltLine Eastside Trail
    The Atlanta BeltLine Eastside Trail is a popular multi-use urban trail in Atlanta that repurposes former railway corridors to connect neighborhoods, parks, and public art along the city’s east side.
  • D. Metropolitan Branch Trail
    The Metropolitan Branch Trail is an urban multi-use trail in Washington, D.C., that runs roughly parallel to the Red Line of the Metro, providing a key north–south route for cyclists and pedestrians between Union Station and neighborhoods to the northeast.
  • E. North Loop Trail
    North Loop Trail is a popular high-elevation hiking route on Mount Charleston near Las Vegas, known for its steep climbs, bristlecone pines, and access toward the summit.
  • F. None of above. chosen

Provenance (5 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.
NED1 Entity disambiguation (via context triple) batch_6a09bb590c888190bb5129341552cdb3 completed May 17, 2026, 12:58 p.m.
NEDg Description generation batch_6a09bea578348190a3cc8a652c7fc362 completed May 17, 2026, 1:12 p.m.
NED2 Entity disambiguation (via description) batch_6a09bf5645348190a2ef7bd49a0237d8 completed May 17, 2026, 1:15 p.m.
Created at: April 16, 2026, 5:43 p.m.