Triple
T17791544
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Upper Falls (Letchworth State Park) |
E444173
|
entity |
| Predicate | nearbyStructure |
P2064
|
FINISHED |
| Object | Portageville railroad trestle |
—
|
NE NERFINISHED |
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: Portageville railroad trestle | Statement: [Upper Falls (Letchworth State Park), nearbyStructure, Portageville railroad trestle]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Portageville railroad trestle Context triple: [Upper Falls (Letchworth State Park), nearbyStructure, Portageville railroad trestle]
-
A.
Contoocook Railroad Bridge
The Contoocook Railroad Bridge is a historic covered railroad bridge in New Hampshire, notable as one of the oldest surviving examples of its kind in the United States.
-
B.
Pudding Creek Trestle
Pudding Creek Trestle is a historic wooden railroad bridge and popular coastal walking and biking trail located along the shoreline near Fort Bragg, California.
-
C.
Mantua Creek railroad bridge
The Mantua Creek railroad bridge is a swing-span rail bridge in Paulsboro, New Jersey, known for carrying freight trains over Mantua Creek and for its involvement in a notable 2012 train derailment and chemical spill.
-
D.
Beachley Viaduct
Beachley Viaduct is a road bridge in Gloucestershire, England, that carries the M48 motorway across the Beachley peninsula as part of the Severn Bridge crossing between England and Wales.
-
E.
Buckman Bridge
The Buckman Bridge is a major highway bridge in Jacksonville, Florida, that carries Interstate 295 across the St. Johns River and is known for its considerable length and heavy commuter traffic.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Portageville railroad trestle Target entity description: The Portageville railroad trestle is a historic steel railway bridge spanning the Genesee River gorge in Letchworth State Park in western New York, long noted for its dramatic height and scenic views.
-
A.
Contoocook Railroad Bridge
The Contoocook Railroad Bridge is a historic covered railroad bridge in New Hampshire, notable as one of the oldest surviving examples of its kind in the United States.
-
B.
Pudding Creek Trestle
Pudding Creek Trestle is a historic wooden railroad bridge and popular coastal walking and biking trail located along the shoreline near Fort Bragg, California.
-
C.
Mantua Creek railroad bridge
The Mantua Creek railroad bridge is a swing-span rail bridge in Paulsboro, New Jersey, known for carrying freight trains over Mantua Creek and for its involvement in a notable 2012 train derailment and chemical spill.
-
D.
Beachley Viaduct
Beachley Viaduct is a road bridge in Gloucestershire, England, that carries the M48 motorway across the Beachley peninsula as part of the Severn Bridge crossing between England and Wales.
-
E.
Buckman Bridge
The Buckman Bridge is a major highway bridge in Jacksonville, Florida, that carries Interstate 295 across the St. Johns River and is known for its considerable length and heavy commuter traffic.
- F. None of above. chosen
Provenance (2 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_69d8b9efe370819095cd219b143ae727 |
completed | April 10, 2026, 8:50 a.m. |
| NER | Named-entity recognition | batch_69e48797408081908c48d98e1525ae87 |
completed | April 19, 2026, 7:43 a.m. |
Created at: April 10, 2026, 10:13 a.m.