Triple
T21717217
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | CR (historical) |
E536060
|
entity |
| Predicate | underlyingCompanyPredecessor |
P118277
|
FINISHED |
| Object | Ann Arbor 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: Ann Arbor Railroad | Statement: [CR (historical), underlyingCompanyPredecessor, Ann Arbor Railroad]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Ann Arbor Railroad Context triple: [CR (historical), underlyingCompanyPredecessor, Ann Arbor Railroad]
-
A.
Ann Arbor Railroad (original)
chosen
The Ann Arbor Railroad (original) was a regional railroad in Michigan and Ohio that operated from the late 19th century into the 20th century, known for its north–south route and car ferry operations across Lake Michigan.
-
B.
Grand Rapids Eastern Railroad
The Grand Rapids Eastern Railroad is a shortline freight railroad operating in western Michigan, interchanging with larger carriers and serving local industries around Grand Rapids.
-
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.
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.
-
E.
Lake Superior and Ishpeming Railroad
The Lake Superior and Ishpeming Railroad is a regional freight railroad in Michigan’s Upper Peninsula, historically known for hauling iron ore from the Marquette Iron Range to Lake Superior ports.
- 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_69e0c46c6dd88190a595375fa6ebd701 |
completed | April 16, 2026, 11:13 a.m. |
| NER | Named-entity recognition | batch_69efd96babdc81908226ec043dbe7431 |
completed | April 27, 2026, 9:47 p.m. |
Created at: April 16, 2026, 6:47 p.m.