Triple
T21690621
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Amtrak Pere Marquette line |
E535352
|
entity |
| Predicate | trackOwner |
P347
|
FINISHED |
| Object |
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.
|
E1497069
|
NE FINISHED |
How this triple was built (4 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: Grand Rapids Eastern Railroad | Statement: [Amtrak Pere Marquette line, trackOwner, Grand Rapids Eastern Railroad]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Grand Rapids Eastern Railroad Context triple: [Amtrak Pere Marquette line, trackOwner, Grand Rapids Eastern Railroad]
-
A.
Grand Rapids and Indiana Railroad
The Grand Rapids and Indiana Railroad was a historic rail line in the Midwestern United States that connected southern Michigan and northern Indiana to resort and timber regions along Lake Michigan and into northern Michigan.
-
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.
Coopersville & Marne Railway
Coopersville & Marne Railway is a heritage railroad in Michigan that offers scenic excursion train rides using historic equipment.
-
D.
Lake Shore and Michigan Southern Railway
The Lake Shore and Michigan Southern Railway was a major 19th-century American railroad that formed a key part of the New York Central system, linking the Great Lakes region with the Eastern United States.
-
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. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Grand Rapids Eastern Railroad Triple: [Amtrak Pere Marquette line, trackOwner, Grand Rapids Eastern Railroad]
Generated description
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.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Grand Rapids Eastern Railroad Target entity description: 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.
-
A.
Grand Rapids and Indiana Railroad
The Grand Rapids and Indiana Railroad was a historic rail line in the Midwestern United States that connected southern Michigan and northern Indiana to resort and timber regions along Lake Michigan and into northern Michigan.
-
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.
Coopersville & Marne Railway
Coopersville & Marne Railway is a heritage railroad in Michigan that offers scenic excursion train rides using historic equipment.
-
D.
Lake Shore and Michigan Southern Railway
The Lake Shore and Michigan Southern Railway was a major 19th-century American railroad that formed a key part of the New York Central system, linking the Great Lakes region with the Eastern United States.
-
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. chosen
Provenance (5 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_69e0c46a6ee481908836e1420fb78c9b |
completed | April 16, 2026, 11:13 a.m. |
| NER | Named-entity recognition | batch_69ef96cfaab08190b400e1538afc8c43 |
completed | April 27, 2026, 5:03 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a0a1e23a7308190bb36c101760e46dc |
completed | May 17, 2026, 7:59 p.m. |
| NEDg | Description generation | batch_6a0a1facb8a48190b61f8df03b38a939 |
completed | May 17, 2026, 8:06 p.m. |
| NED2 | Entity disambiguation (via description) | batch_6a0a202f4c6c8190b46839b2edab7b60 |
completed | May 17, 2026, 8:08 p.m. |
Created at: April 16, 2026, 6:44 p.m.