Triple
T23062199
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Vanderbilt railroad system |
E574934
|
entity |
| Predicate | includes |
P1393
|
FINISHED |
| Object | Michigan Central Railroad |
—
|
NE NERFINISHED |
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: Michigan Central Railroad | Statement: [Vanderbilt railroad system, includes, Michigan Central Railroad]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Michigan Central Railroad Context triple: [Vanderbilt railroad system, includes, Michigan Central Railroad]
-
A.
Michigan Central Railroad
chosen
Michigan Central Railroad was a major 19th- and early 20th-century American railroad company that operated key passenger and freight routes across Michigan and the Great Lakes region, connecting to Chicago and the broader Midwest rail network.
-
B.
Great Lakes Central Railroad
Great Lakes Central Railroad is a regional freight railroad in Michigan that operates former state-owned lines across the central and northern parts of the state.
-
C.
Pere Marquette Railway
Pere Marquette Railway was a historic Midwestern U.S. railroad company that operated primarily in Michigan and surrounding states in the late 19th and early 20th centuries.
-
D.
Detroit, Toledo and Ironton Railroad
The Detroit, Toledo and Ironton Railroad was a regional U.S. railroad operating primarily in Michigan and Ohio, known for its freight services and later incorporation into larger rail systems.
-
E.
Belt Railway of Chicago
The Belt Railway of Chicago is a major terminal railroad that provides switching and interchange services among multiple freight railroads in the Chicago area.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69e245bd6e4c8190bb8942245b68cad5 |
completed | April 17, 2026, 2:37 p.m. |
| NER | Named-entity recognition | batch_69f189a0c3c881909f137ad511c216ac |
completed | April 29, 2026, 4:31 a.m. |
Created at: April 17, 2026, 3:55 p.m.