Triple
T5487072
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Lake Shore and Michigan Southern Railway |
E123608
|
entity |
| Predicate | formedByMergerOf |
P77
|
FINISHED |
| Object |
Michigan Southern and Northern Indiana Railroad
The Michigan Southern and Northern Indiana Railroad was a 19th-century regional railroad that operated lines across southern Michigan and northern Indiana before becoming part of the larger Lake Shore and Michigan Southern Railway system.
|
E123608
|
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: Michigan Southern and Northern Indiana Railroad | Statement: [Lake Shore and Michigan Southern Railway, formedByMergerOf, Michigan Southern and Northern Indiana Railroad]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Michigan Southern and Northern Indiana Railroad Context triple: [Lake Shore and Michigan Southern Railway, formedByMergerOf, Michigan Southern and Northern Indiana 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.
Chicago South Shore and South Bend Railroad
The Chicago South Shore and South Bend Railroad is an interurban electric railroad in the Midwest that historically operated passenger and freight service between Chicago, Illinois, and South Bend, Indiana.
-
C.
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.
-
D.
Chicago, Indianapolis and Louisville Railway
The Chicago, Indianapolis and Louisville Railway, commonly known as the Monon Railroad, was a regional railroad that connected key Midwestern cities and played a significant role in the transportation network of Indiana and surrounding states in the late 19th and early 20th centuries.
-
E.
Wabash Railroad
Wabash Railroad was a major Midwestern American railroad company that operated an extensive network connecting key cities such as Chicago, St. Louis, Detroit, and Buffalo during the late 19th and early 20th centuries.
- 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: Michigan Southern and Northern Indiana Railroad Triple: [Lake Shore and Michigan Southern Railway, formedByMergerOf, Michigan Southern and Northern Indiana Railroad]
Generated description
The Michigan Southern and Northern Indiana Railroad was a 19th-century regional railroad that operated lines across southern Michigan and northern Indiana before becoming part of the larger Lake Shore and Michigan Southern Railway system.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Michigan Southern and Northern Indiana Railroad Target entity description: The Michigan Southern and Northern Indiana Railroad was a 19th-century regional railroad that operated lines across southern Michigan and northern Indiana before becoming part of the larger Lake Shore and Michigan Southern Railway system.
-
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.
Chicago South Shore and South Bend Railroad
The Chicago South Shore and South Bend Railroad is an interurban electric railroad in the Midwest that historically operated passenger and freight service between Chicago, Illinois, and South Bend, Indiana.
-
C.
Lake Shore and Michigan Southern Railway
chosen
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.
-
D.
Chicago, Indianapolis and Louisville Railway
The Chicago, Indianapolis and Louisville Railway, commonly known as the Monon Railroad, was a regional railroad that connected key Midwestern cities and played a significant role in the transportation network of Indiana and surrounding states in the late 19th and early 20th centuries.
-
E.
Wabash Railroad
Wabash Railroad was a major Midwestern American railroad company that operated an extensive network connecting key cities such as Chicago, St. Louis, Detroit, and Buffalo during the late 19th and early 20th centuries.
- F. None of above.
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_69bd464a2d908190869324ce176779c8 |
completed | March 20, 2026, 1:06 p.m. |
| NER | Named-entity recognition | batch_69bd92639b3481908845c280d334117f |
completed | March 20, 2026, 6:30 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69bf48aa12708190add69c5fd51d161d |
completed | March 22, 2026, 1:40 a.m. |
| NEDg | Description generation | batch_69bf4a2b6c508190ad13f6d9823ad747 |
completed | March 22, 2026, 1:47 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69bf4a87d1fc8190a0e0e75d6f9cd766 |
completed | March 22, 2026, 1:48 a.m. |
Created at: March 20, 2026, 2:10 p.m.