Triple
T16315305
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pennsylvania trolley gauge |
E396156
|
entity |
| Predicate | alsoKnownAs |
P39
|
FINISHED |
| Object | Pennsylvania broad 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 broad gauge | Statement: [Pennsylvania trolley gauge, alsoKnownAs, Pennsylvania broad gauge]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pennsylvania broad gauge Context triple: [Pennsylvania trolley gauge, alsoKnownAs, Pennsylvania broad 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.
The Standard Railroad of the World
The Standard Railroad of the World was the proud slogan and nickname of the Pennsylvania Railroad, once one of the largest and most influential railroads in the United States.
-
C.
Indian broad gauge
Indian broad gauge is the standard, wider-than-average railway track gauge predominantly used across India’s rail network, enabling high-capacity and heavy-haul train operations.
-
D.
Perkiomen Railroad
Perkiomen Railroad was a historic rail line in southeastern Pennsylvania that later became the basis for the modern Perkiomen Trail.
-
E.
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.
- 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_69d87f255b788190a400eba031dd85d8 |
completed | April 10, 2026, 4:40 a.m. |
| NER | Named-entity recognition | batch_69e288de57cc81908cec93309347c385 |
completed | April 17, 2026, 7:24 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a001fa88e8c8190b0423b60389896dc |
completed | May 10, 2026, 6:03 a.m. |
Created at: April 10, 2026, 5:06 a.m.