Triple
T8255202
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Golden Spike ceremony |
E193053
|
entity |
| Predicate | railroadEndpointEast |
P3569
|
FINISHED |
| Object | Union Pacific line from Omaha, Nebraska |
E514947
|
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: Union Pacific line from Omaha, Nebraska | Statement: [Golden Spike ceremony, railroadEndpointEast, Union Pacific line from Omaha, Nebraska]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Union Pacific line from Omaha, Nebraska Context triple: [Golden Spike ceremony, railroadEndpointEast, Union Pacific line from Omaha, Nebraska]
-
A.
Union Pacific Railroad line
The Union Pacific Railroad line is a major freight rail route in the western United States operated by Union Pacific Railroad, one of the largest railroad networks in North America.
-
B.
Union Pacific North Line
The Union Pacific North Line is a Metra commuter rail line in the Chicago metropolitan area that runs north from downtown Chicago through suburbs along Lake Michigan into Kenosha, Wisconsin.
-
C.
Chicago–Omaha main line
chosen
The Chicago–Omaha main line was a principal transcontinental rail corridor in the Midwestern United States, linking Chicago with Omaha and serving as a key route for both passenger and freight traffic.
-
D.
Union Pacific West Line
The Union Pacific West Line is a commuter rail route in the Chicago metropolitan area that runs between downtown Chicago and western suburbs, providing daily passenger service as part of the Metra system.
-
E.
Burlington and Missouri River Railroad in Nebraska
The Burlington and Missouri River Railroad in Nebraska was a 19th-century Midwestern railroad whose lines became a key part of the Chicago, Burlington and Quincy Railroad system.
- 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: railroadEndpointEast Context triple: [Golden Spike ceremony, railroadEndpointEast, Union Pacific line from Omaha, Nebraska]
-
A.
terminusEast
chosen
Indicates that one entity serves as the eastern endpoint or final stop of another entity, such as a route, line, or path.
-
B.
railroadTerminusFor
Indicates that one location serves as the end point or final station of a particular railroad line for another location.
-
C.
nextStationEast
Indicates that one station is the immediate next station to the east of another station along a route or line.
-
D.
railroadMet
Indicates that two or more railroads encountered or connected with each other at a specific place or time.
-
E.
railwayJunctionFor
Indicates that a location serves as a junction point where multiple railway lines or routes connect or intersect for a given railway network or service.
- 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_69ca82dfad9c8190b8cd18fb89f50f40 |
completed | March 30, 2026, 2:04 p.m. |
| NER | Named-entity recognition | batch_69cb78f9f680819088f1d56e0f98974f |
completed | March 31, 2026, 7:34 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cd3553b48881909cc72e443aad9539 |
completed | April 1, 2026, 3:10 p.m. |
| PD | Predicate disambiguation | batch_69cb36b6d5548190b665a6cce14c69f7 |
completed | March 31, 2026, 2:51 a.m. |
Created at: March 30, 2026, 5:48 p.m.