Triple
T13233660
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tatra T1 |
E315084
|
entity |
| Predicate | technologyBasedOn |
P38305
|
FINISHED |
| Object | PCC streetcar design |
E79857
|
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: PCC streetcar design | Statement: [Tatra T1, technologyBasedOn, PCC streetcar design]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: PCC streetcar design Context triple: [Tatra T1, technologyBasedOn, PCC streetcar design]
-
A.
PCC streetcar
chosen
The PCC streetcar is a standardized, streamlined electric tram design introduced in the 1930s that became one of the most widely used and influential streetcar types in North America and beyond.
-
B.
M-Line Streetcar
The M-Line Streetcar is a heritage streetcar service in Dallas, Texas, that operates vintage trolleys through the Uptown area and connects to downtown.
-
C.
S-Line streetcar
The S-Line streetcar is a modern streetcar route in the Salt Lake City area that connects the Sugar House neighborhood with the regional light rail network as part of the public transit system.
-
D.
Peter Witt streetcar
The Peter Witt streetcar is a historic early 20th-century tram design, originally developed in Cleveland and widely adopted in North American and European cities for its efficient boarding layout and distinctive classic appearance.
-
E.
United Streetcar
United Streetcar was an American company that manufactured modern streetcars for urban transit systems in the United States.
- 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: technologyBasedOn Context triple: [Tatra T1, technologyBasedOn, PCC streetcar design]
-
A.
technologyBasis
chosen
Indicates that one entity is founded on, enabled by, or fundamentally relies upon the technology provided or represented by another entity.
-
B.
technologyUsedBy
Indicates that a particular technology is employed or utilized by a specified entity.
-
C.
technologyUsedIn
Indicates that a particular technology is employed or applied within a specific process, product, context, or domain.
-
D.
technologyPresent
Indicates that a particular technology exists, is available, or is currently in use in the given context or situation.
-
E.
technologyType
Indicates the specific kind or category of technology associated with an entity or relationship.
- 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_69d806affc688190a25b6ccc588e9c72 |
completed | April 9, 2026, 8:06 p.m. |
| NER | Named-entity recognition | batch_69d98d36bdf8819099949b1e0e6902d3 |
completed | April 10, 2026, 11:52 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f72664b9a48190a76e0c3dfaaf3d7a |
completed | May 3, 2026, 10:41 a.m. |
| PD | Predicate disambiguation | batch_69d98bcb21648190aef241de1e7887e2 |
completed | April 10, 2026, 11:46 p.m. |
Created at: April 9, 2026, 9:22 p.m.