Triple
T19335586
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Kelso, California |
E483613
|
entity |
| Predicate | foundedAsRailroadStopFor |
P135463
|
FINISHED |
| Object | San Pedro, Los Angeles and Salt Lake Railroad |
—
|
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: San Pedro, Los Angeles and Salt Lake Railroad | Statement: [Kelso, California, foundedAsRailroadStopFor, San Pedro, Los Angeles and Salt Lake Railroad]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: San Pedro, Los Angeles and Salt Lake Railroad Context triple: [Kelso, California, foundedAsRailroadStopFor, San Pedro, Los Angeles and Salt Lake Railroad]
-
A.
San Pedro, Los Angeles and Salt Lake Railroad
chosen
The San Pedro, Los Angeles and Salt Lake Railroad was an early 20th-century rail line that connected Los Angeles, California, with Salt Lake City, Utah, playing a key role in the development of the American Southwest.
-
B.
Arizona and California Railroad
The Arizona and California Railroad is a short line freight railroad operating in the southwestern United States, primarily connecting communities in western Arizona and southeastern California.
-
C.
Oregon and California Railroad
The Oregon and California Railroad was a 19th-century rail line in the Pacific Northwest that played a key role in connecting Oregon communities and facilitating regional development.
-
D.
Las Vegas and Tonopah Railroad
The Las Vegas and Tonopah Railroad was an early 20th-century Nevada rail line that connected Las Vegas with mining boomtowns in the state’s south-central region, serving as a key carrier for ore, supplies, and passengers during the mining rush era.
-
E.
Carson and Colorado Railway
The Carson and Colorado Railway was a narrow-gauge railroad that operated in the late 19th and early 20th centuries, primarily serving remote mining regions in Nevada and eastern California.
- 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: foundedAsRailroadStopFor Context triple: [Kelso, California, foundedAsRailroadStopFor, San Pedro, Los Angeles and Salt Lake Railroad]
-
A.
railroadTerminusFor
Indicates that one location serves as the end point or final station of a particular railroad line for another location.
-
B.
hasRailwayStationOn
Indicates that a railway station is located on or serves a particular railway line, route, or network segment.
-
C.
hasRailwayStationRole
Indicates that an entity holds or is assigned a specific functional role or capacity within the operation or management of a railway station.
-
D.
hasRailwayStation
Indicates that a place or location is served by, or contains, a railway station.
-
E.
hasRailStation
Indicates that one entity possesses, contains, or is served by a rail station.
- F. None of above. chosen
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_69d8e8d13e3c81909d91d1d5ec37c095 |
completed | April 10, 2026, 12:10 p.m. |
| NER | Named-entity recognition | batch_69e61644b80c819080f9bca086424a36 |
completed | April 20, 2026, 12:04 p.m. |
| PD | Predicate disambiguation | batch_69e4dd12303c8190a2027c062b2dff40 |
completed | April 19, 2026, 1:48 p.m. |
| PDg | Predicate description generation | batch_69e4df51ac6c819091ce72b07790ffa6 |
completed | April 19, 2026, 1:57 p.m. |
Created at: April 10, 2026, 1:33 p.m.