Triple
T892940
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pittsburgh, Pennsylvania |
E19280
|
entity |
| Predicate | hasLandmark |
P105
|
FINISHED |
| Object |
Duquesne Incline
The Duquesne Incline is a historic funicular railway in Pittsburgh that carries passengers up Mount Washington, offering panoramic views of the city’s skyline and rivers.
|
E105983
|
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: Duquesne Incline | Statement: [Pittsburgh, Pennsylvania, hasLandmark, Duquesne Incline]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Duquesne Incline Context triple: [Pittsburgh, Pennsylvania, hasLandmark, Duquesne Incline]
-
A.
Roosevelt Island Tramway
The Roosevelt Island Tramway is an aerial cable car system in New York City that connects Roosevelt Island to Manhattan, offering both public transit and scenic views of the skyline.
-
B.
40th Street Portal
40th Street Portal is a major West Philadelphia transit junction where SEPTA’s subway–surface trolley lines emerge from the underground tunnel to continue on surface streets.
-
C.
Powell–Hyde cable car line
The Powell–Hyde cable car line is one of San Francisco’s historic cable car routes, running from Market Street over Nob Hill and Russian Hill to the city’s northern waterfront near Fisherman’s Wharf.
-
D.
Union Station (Pittsburgh)
Union Station (Pittsburgh) is a historic Beaux-Arts railroad terminal in downtown Pittsburgh, renowned for its grand rotunda and role as a major early 20th-century transportation hub.
-
E.
Metropolitan West Side Elevated Railroad
The Metropolitan West Side Elevated Railroad was an early elevated transit line in Chicago that formed part of the city’s first rapid transit system on the West Side.
- 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: Duquesne Incline Triple: [Pittsburgh, Pennsylvania, hasLandmark, Duquesne Incline]
Generated description
The Duquesne Incline is a historic funicular railway in Pittsburgh that carries passengers up Mount Washington, offering panoramic views of the city’s skyline and rivers.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Duquesne Incline Target entity description: The Duquesne Incline is a historic funicular railway in Pittsburgh that carries passengers up Mount Washington, offering panoramic views of the city’s skyline and rivers.
-
A.
Roosevelt Island Tramway
The Roosevelt Island Tramway is an aerial cable car system in New York City that connects Roosevelt Island to Manhattan, offering both public transit and scenic views of the skyline.
-
B.
40th Street Portal
40th Street Portal is a major West Philadelphia transit junction where SEPTA’s subway–surface trolley lines emerge from the underground tunnel to continue on surface streets.
-
C.
Powell–Hyde cable car line
The Powell–Hyde cable car line is one of San Francisco’s historic cable car routes, running from Market Street over Nob Hill and Russian Hill to the city’s northern waterfront near Fisherman’s Wharf.
-
D.
Union Station (Pittsburgh)
Union Station (Pittsburgh) is a historic Beaux-Arts railroad terminal in downtown Pittsburgh, renowned for its grand rotunda and role as a major early 20th-century transportation hub.
-
E.
Metropolitan West Side Elevated Railroad
The Metropolitan West Side Elevated Railroad was an early elevated transit line in Chicago that formed part of the city’s first rapid transit system on the West Side.
- 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_69a4939d37188190848be3d426ebc9ae |
completed | March 1, 2026, 7:29 p.m. |
| NER | Named-entity recognition | batch_69a4ad0304b081908d4c92bb2beadb81 |
completed | March 1, 2026, 9:17 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a7c025464081908032939637248635 |
completed | March 4, 2026, 5:16 a.m. |
| NEDg | Description generation | batch_69a7c227893c8190a4ce35637365014f |
completed | March 4, 2026, 5:24 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a7c2f1d0508190ad47eeb8099fd9f9 |
completed | March 4, 2026, 5:28 a.m. |
Created at: March 1, 2026, 7:39 p.m.