Triple
T10032319
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | SEPTA Route 15 |
E204879
|
entity |
| Predicate | trackGauge |
P391
|
FINISHED |
| Object | Pennsylvania trolley gauge |
E396156
|
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: Pennsylvania trolley gauge | Statement: [SEPTA Route 15, trackGauge, Pennsylvania trolley gauge]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pennsylvania trolley gauge Context triple: [SEPTA Route 15, trackGauge, Pennsylvania trolley gauge]
-
A.
Pennsylvania trolley gauge
chosen
The Pennsylvania trolley gauge is a non-standard, wider-than-standard track gauge historically used by many streetcar and trolley systems in Pennsylvania, notably in the Philadelphia area.
-
B.
Pan Handle Railway
The Pan Handle Railway was a 19th-century American railroad whose lines later became part of the Pittsburgh, Cincinnati, Chicago and St. Louis Railroad system.
-
C.
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.
-
D.
North American loading gauge
The North American loading gauge is the standard set of maximum height and width dimensions that railway vehicles and loads must conform to in order to safely operate on North American rail networks.
-
E.
Allegheny Portage Railroad
The Allegheny Portage Railroad was a 19th-century inclined-plane rail system that carried canal boats over the Allegheny Mountains, playing a key role in early transportation across Pennsylvania and now preserved as a National Historic Site.
- 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_69ca834d77188190ad645e33e8ca3200 |
completed | March 30, 2026, 2:06 p.m. |
| NER | Named-entity recognition | batch_69cdce47845c8190ab5696267fdedcad |
completed | April 2, 2026, 2:02 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d282478578819085ca00fe140bb6c1 |
completed | April 5, 2026, 3:39 p.m. |
Created at: March 30, 2026, 8:54 p.m.