Triple
T472053
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | SEPTA Broad Street Line |
E8578
|
entity |
| Predicate | corridor |
P5520
|
FINISHED |
| Object | Broad Street corridor |
E35961
|
NE FINISHED |
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: Broad Street corridor | Statement: [SEPTA Broad Street Line, corridor, Broad Street corridor]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Broad Street corridor Context triple: [SEPTA Broad Street Line, corridor, Broad Street corridor]
-
A.
Tremont Street commercial corridor
Tremont Street commercial corridor is a key mixed-use business district in Boston’s Mission Hill neighborhood, known for its dense concentration of shops, restaurants, and local services.
-
B.
Broad Street (Philadelphia)
chosen
Broad Street (Philadelphia) is a major north–south thoroughfare and one of the city’s primary streets, known for landmarks like City Hall and the Avenue of the Arts.
-
C.
Broad Street Line
The Broad Street Line is a major north–south rapid transit subway line in Philadelphia operated by SEPTA, running primarily beneath Broad Street and serving key downtown and neighborhood destinations.
-
D.
Fulton Street
Fulton Street is a major east–west thoroughfare in San Francisco that runs along the northern edge of Alamo Square Park, offering iconic views of the Painted Ladies and the city skyline.
-
E.
South Street
South Street is a historic thoroughfare in Lower Manhattan, New York City, running along the East River waterfront and associated with the city’s former seaport and maritime commerce.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: corridor Context triple: [SEPTA Broad Street Line, corridor, Broad Street corridor]
-
A.
hasCorridor
chosen
Indicates that one entity includes, is connected by, or provides access through a corridor to another entity.
-
B.
numberOfCorridors
Indicates the total count of corridors associated with or contained within a given entity or structure.
-
C.
chamber1
Indicates that an entity is a chamber or room, typically serving as an enclosed space within a larger structure.
-
D.
chamber2
Indicates that one entity serves as a secondary or inner chamber, room, or compartment associated with another entity.
-
E.
mainChamber
Indicates that something is the primary or central chamber or room within a larger structure or system.
- F. None of above.
Provenance (4 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_69a2e7f3aeb48190a19453e3a043f486 |
completed | Feb. 28, 2026, 1:04 p.m. |
| NER | Named-entity recognition | batch_69a2eff24108819092fdb85019ec4089 |
completed | Feb. 28, 2026, 1:38 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a7b82d2d5c8190b5cd8779fcbc8e81 |
completed | March 4, 2026, 4:42 a.m. |
| PD | Predicate disambiguation | batch_69a2edecefb081908331ef8b9edf6636 |
completed | Feb. 28, 2026, 1:30 p.m. |
Created at: Feb. 28, 2026, 1:12 p.m.