Triple
T16052937
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Subway–Surface tunnel |
E389399
|
entity |
| Predicate | hasSystem |
P730
|
FINISHED |
| Object | SEPTA Subway–Surface Trolley |
E1855
|
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: SEPTA Subway–Surface Trolley | Statement: [Subway–Surface tunnel, hasSystem, SEPTA Subway–Surface Trolley]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: SEPTA Subway–Surface Trolley Context triple: [Subway–Surface tunnel, hasSystem, SEPTA Subway–Surface Trolley]
-
A.
SEPTA Subway–Surface Trolley Lines
chosen
The SEPTA Subway–Surface Trolley Lines are a network of light rail routes in Philadelphia that operate partly in subway tunnels and partly on city streets, connecting Center City with West Philadelphia and surrounding neighborhoods.
-
B.
SEPTA Subway
SEPTA Subway is the rapid transit network serving Philadelphia and some surrounding areas, operated by the Southeastern Pennsylvania Transportation Authority and centered on the Broad Street and Market–Frankford lines.
-
C.
Interurban Trolley
Interurban Trolley is a regional bus system providing fixed-route public transportation service in and around Elkhart and Goshen in northern Indiana.
-
D.
SEPTA Regional Rail
SEPTA Regional Rail is a commuter rail network serving the Philadelphia metropolitan area, connecting the city with its suburbs and neighboring regions.
-
E.
SEPTA Silverliner II
The SEPTA Silverliner II was an early generation of electric multiple-unit commuter railcars used in the Philadelphia region, known for introducing more modern stainless-steel equipment to the area's suburban rail service in the 1960s.
- 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_69d86dae698881908327ef2d67706cb9 |
completed | April 10, 2026, 3:25 a.m. |
| NER | Named-entity recognition | batch_69e1836365688190b182f29bbb66127e |
completed | April 17, 2026, 12:48 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ffe478bcc48190bdd4fcb7ec51caad |
completed | May 10, 2026, 1:50 a.m. |
Created at: April 10, 2026, 4:56 a.m.