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.