Triple
T4878483
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Powell-Mason cable car line |
E109261
|
entity |
| Predicate | cableCarSystem |
P59567
|
FINISHED |
| Object | Powell Street cable car network |
E109261
|
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: Powell Street cable car network | Statement: [Powell-Mason cable car line, cableCarSystem, Powell Street cable car network]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Powell Street cable car network Context triple: [Powell-Mason cable car line, cableCarSystem, Powell Street cable car network]
-
A.
Powell-Mason cable car line
chosen
The Powell-Mason cable car line is one of San Francisco’s historic cable car routes, carrying passengers between the bustling waterfront and the hilltop neighborhoods, including Nob Hill.
-
B.
Seattle Streetcar
The Seattle Streetcar is a modern electric streetcar system providing urban transit service along key corridors in Seattle, Washington.
-
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.
Muni F-Market & Wharves line
The Muni F-Market & Wharves line is a historic streetcar route in San Francisco that runs along Market Street and the Embarcadero, connecting downtown with popular waterfront destinations.
-
E.
San Francisco cable car system
The San Francisco cable car system is a historic manually operated streetcar network and iconic symbol of the city, known for its steep routes and status as the world’s last permanently operational cable car system.
- 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: cableCarSystem Context triple: [Powell-Mason cable car line, cableCarSystem, Powell Street cable car network]
-
A.
cableCarSystemPurpose
Indicates the intended function or primary use for which a cable car system is designed or operated.
-
B.
cableCarSystemBuiltIn
Indicates that a cable car system was constructed or established within a specific location or context.
-
C.
hasCableCar
Indicates that one entity possesses, operates, or is served by a cable car system connecting it to other locations or points.
-
D.
cableCarOpened
Indicates that a cable car system or line has begun operating or was officially opened for use.
-
E.
cableCarOperator
Indicates that one entity operates, manages, or runs a cable car service for another entity or location.
- 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_69bd440e9d64819083e82cf33b4d9570 |
completed | March 20, 2026, 12:56 p.m. |
| NER | Named-entity recognition | batch_69bd6dbd69d48190a8397d67af8f5fc8 |
completed | March 20, 2026, 3:54 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69be6fb8e8f081908cee75f80494dd7d |
completed | March 21, 2026, 10:15 a.m. |
| PD | Predicate disambiguation | batch_69bd6c2be5e881909f6ec9c3bcde49f3 |
completed | March 20, 2026, 3:47 p.m. |
| PDg | Predicate description generation | batch_69bd6d5976a081909090c0c263f6e9b7 |
completed | March 20, 2026, 3:52 p.m. |
Created at: March 20, 2026, 1:27 p.m.