Triple
T5127435
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | U.S. intercity passenger rail network |
E115617
|
entity |
| Predicate | mainNationalOperator |
P5623
|
FINISHED |
| Object | National Railroad Passenger Corporation |
E1072
|
NE FINISHED |
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: National Railroad Passenger Corporation | Statement: [U.S. intercity passenger rail network, mainNationalOperator, National Railroad Passenger Corporation]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: National Railroad Passenger Corporation Context triple: [U.S. intercity passenger rail network, mainNationalOperator, National Railroad Passenger Corporation]
-
A.
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.
-
B.
Amtrak
chosen
Amtrak is the United States’ national passenger railroad service, operating intercity and long-distance trains across much of the country.
-
C.
Federal Passenger Company
Federal Passenger Company is a major Russian rail operator responsible for long-distance passenger train services across Russia and neighboring countries.
-
D.
Pan Am Railways
Pan Am Railways was a regional freight railroad in New England, formerly known as Guilford Rail System, that operated an extensive network across the northeastern United States.
-
E.
Association of American Railroads
The Association of American Railroads is a trade group representing major freight and passenger railroads in North America, focusing on industry policy, safety standards, and technological research.
- 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: mainNationalOperator Context triple: [U.S. intercity passenger rail network, mainNationalOperator, National Railroad Passenger Corporation]
-
A.
primaryOperator
chosen
Indicates that an entity serves as the main or leading operator responsible for performing or overseeing a specified operation or process in relation to another entity.
-
B.
wirelessOperator
Indicates that an entity operates, manages, or provides services for a wireless communication system or network for another entity.
-
C.
primaryHighSpeedOperator
Indicates that an entity serves as the main operator responsible for providing high-speed service or functionality to another entity.
-
D.
commercialOperator
Indicates that an entity operates or manages a commercial activity, service, or facility, typically for profit or business purposes.
-
E.
longDistanceOperator
Indicates that an entity performs telephone or communication services that connect calls over long distances between different geographic areas.
- F. None of above.
Provenance (4 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_69bd444426bc819099ccd23f141e22aa |
completed | March 20, 2026, 12:57 p.m. |
| NER | Named-entity recognition | batch_69bd7d5a23908190a24e79d1b29d6fcf |
completed | March 20, 2026, 5:01 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69bec4beb7b48190a2f4e41a13fdd5f3 |
completed | March 21, 2026, 4:18 p.m. |
| PD | Predicate disambiguation | batch_69bd77aa68b88190a50dd736a72d2901 |
completed | March 20, 2026, 4:36 p.m. |
Created at: March 20, 2026, 1:42 p.m.