Triple
T22065834
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pennsylvania Railroad tracks |
E545265
|
entity |
| Predicate | currentOperatorOnFreightSegments |
P39220
|
FINISHED |
| Object | Norfolk Southern Railway |
—
|
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: Norfolk Southern Railway | Statement: [Pennsylvania Railroad tracks, currentOperatorOnFreightSegments, Norfolk Southern Railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Norfolk Southern Railway Context triple: [Pennsylvania Railroad tracks, currentOperatorOnFreightSegments, Norfolk Southern Railway]
-
A.
Norfolk Southern Railway
chosen
Norfolk Southern Railway is a major U.S. freight railroad company operating an extensive rail network across the eastern United States.
-
B.
CSX Transportation
CSX Transportation is a major U.S. freight railroad company operating an extensive rail network across the eastern United States.
-
C.
Norfolk and Western Railway
Norfolk and Western Railway was a major American railroad known for its coal-hauling operations and distinctive steam locomotive fleet, which later became part of Norfolk Southern Railway through merger.
-
D.
CSX
CSX is the IATA airport code for Changsha Huanghua International Airport, the main air gateway serving Changsha in Hunan Province, China.
-
E.
Consolidated Rail Corporation
Consolidated Rail Corporation, commonly known as Conrail, was a major U.S. freight railroad created in the 1970s to take over and revitalize the operations of several bankrupt Northeastern railroads.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: currentOperatorOnFreightSegments Context triple: [Pennsylvania Railroad tracks, currentOperatorOnFreightSegments, Norfolk Southern Railway]
-
A.
freightOperatorOnCorridor
chosen
Indicates that a particular freight operator provides services or operates along a specified transport corridor.
-
B.
operatedBySegment
Indicates that an operation, process, or service is carried out specifically by a particular segment or subsection of a larger system or route.
-
C.
continuedFreightOperationsUntil
Indicates that an entity maintained its freight transportation activities up to and including a specified point in time.
-
D.
operatesInSegment
Indicates that an entity conducts its activities or provides its services within a specified market or operational segment.
-
E.
hasPassengerOperator
Indicates that an entity (such as a vehicle or service) is operated by an organization or person responsible for carrying passengers.
- F. None of above.
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_69e11e344dfc81909b1d88a7221329c7 |
completed | April 16, 2026, 5:36 p.m. |
| NER | Named-entity recognition | batch_69f12883d2108190a6127783f8f635fc |
completed | April 28, 2026, 9:37 p.m. |
| PD | Predicate disambiguation | batch_69e6f64a6a70819089d1a6c3a2384861 |
completed | April 21, 2026, 4 a.m. |
Created at: April 16, 2026, 8:27 p.m.