Triple
T13233371
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | PCC streetcar |
E315076
|
entity |
| Predicate | standardizationBody |
P1251
|
FINISHED |
| Object | Electric Railway Presidents’ Conference Committee |
E1029627
|
NE FINISHED |
How this triple was built (2 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: Electric Railway Presidents’ Conference Committee | Statement: [PCC streetcar, standardizationBody, Electric Railway Presidents’ Conference Committee]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Electric Railway Presidents’ Conference Committee Context triple: [PCC streetcar, standardizationBody, Electric Railway Presidents’ Conference Committee]
-
A.
Electric Railway Presidents’ Conference Committee
chosen
The Electric Railway Presidents’ Conference Committee was a consortium of U.S. street railway executives formed in the 1930s to design and standardize a modern, efficient streetcar for urban transit systems.
-
B.
Volk’s Electric Railway
Volk’s Electric Railway is a historic narrow-gauge electric seafront railway in Brighton, England, regarded as the world’s oldest operating electric railway.
-
C.
United States Railroad Administration
The United States Railroad Administration was the federal agency that temporarily nationalized and operated American railroads during World War I to improve efficiency and support the war effort.
-
D.
Pennsylvania Railroad laboratories
Pennsylvania Railroad laboratories were the research and testing facilities of the Pennsylvania Railroad, where scientific and engineering studies were conducted to improve railroad materials, equipment, and operations.
-
E.
North American streamlined passenger trains
North American streamlined passenger trains were mid-20th-century high-speed, aerodynamically styled passenger trains known for their sleek appearance, modern amenities, and role in symbolizing the golden age of rail travel across the continent.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69d98d34ff288190bdb550a019b7a470 |
completed | April 10, 2026, 11:52 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f70a35ccc88190881a7066b7af8fea |
completed | May 3, 2026, 8:41 a.m. |
Created at: April 9, 2026, 9:22 p.m.