Triple
T16470202
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Big Four |
E400039
|
entity |
| Predicate | alsoKnownAs |
P39
|
FINISHED |
| Object | Big Four railway companies |
E88871
|
NE FINISHED |
How this triple was built (2 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: Big Four railway companies | Statement: [Big Four, alsoKnownAs, Big Four railway companies]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Big Four railway companies Context triple: [Big Four, alsoKnownAs, Big Four railway companies]
-
A.
Big Four (British railway companies)
chosen
The Big Four were the four major private railway companies that dominated rail transport in Great Britain between the 1923 Grouping and nationalisation in 1948.
-
B.
Union Railways
Union Railways is a British rail infrastructure and development company known for its role in major UK rail projects and for employing civil engineer Sir John Armitt.
-
C.
Big Four railroad magnate circle
The Big Four railroad magnate circle was the powerful group of 19th-century California tycoons who financed and controlled the construction and operation of the Central Pacific Railroad and much of the early transcontinental rail system.
-
D.
Big Four of the Central Pacific
The Big Four of the Central Pacific were a group of influential 19th-century railroad magnates—Leland Stanford, Collis P. Huntington, Mark Hopkins, and Charles Crocker—who financed and built the western portion of the First Transcontinental Railroad in the United States.
-
E.
Metropolitan Intercity Railway Company
Metropolitan Intercity Railway Company is a Japanese railway operator best known for running the Tsukuba Express line connecting central Tokyo with the Tsukuba area.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
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_69d87f2dac988190b74d6e185fa88ba4 |
completed | April 10, 2026, 4:40 a.m. |
| NER | Named-entity recognition | batch_69e32dcfed6c8190b8dbe4b65b0ab817 |
completed | April 18, 2026, 7:08 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a004f5af4308190bd023624de35027f |
completed | May 10, 2026, 9:26 a.m. |
Created at: April 10, 2026, 5:11 a.m.