Triple

T1092789
Position Surface form Disambiguated ID Type / Status
Subject Conrail E24202 entity
Predicate precededBy P97 FINISHED
Object Ann Arbor Railroad (original)
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.
E125687 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: Ann Arbor Railroad (original) | Statement: [Conrail, precededBy, Ann Arbor Railroad (original)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Ann Arbor Railroad (original)
Context triple: [Conrail, precededBy, Ann Arbor Railroad (original)]
  • 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. 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.
  • C. Fitchburg Railroad
    The Fitchburg Railroad was a historic New England rail line that operated across Massachusetts and into Vermont, later becoming part of the Boston and Maine Railroad system.
  • D. Pan Handle Railway
    The Pan Handle Railway was a 19th-century American railroad whose lines later became part of the Pittsburgh, Cincinnati, Chicago and St. Louis Railroad system.
  • E. Irondale rail yard
    Irondale rail yard is a major freight rail facility in Irondale, Alabama, serving as a key hub for train operations, switching, and cargo handling in the region.
  • 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: Ann Arbor Railroad (original)
Triple: [Conrail, precededBy, Ann Arbor Railroad (original)]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Ann Arbor Railroad (original)
Target entity description: 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.
  • 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. 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.
  • C. Fitchburg Railroad
    The Fitchburg Railroad was a historic New England rail line that operated across Massachusetts and into Vermont, later becoming part of the Boston and Maine Railroad system.
  • D. Pan Handle Railway
    The Pan Handle Railway was a 19th-century American railroad whose lines later became part of the Pittsburgh, Cincinnati, Chicago and St. Louis Railroad system.
  • E. Irondale rail yard
    Irondale rail yard is a major freight rail facility in Irondale, Alabama, serving as a key hub for train operations, switching, and cargo handling in the region.
  • 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_69a4940542308190ac2a0b1f730b7cfc completed March 1, 2026, 7:31 p.m.
NER Named-entity recognition batch_69a4b99bd06c8190bce1d77b0337b07c completed March 1, 2026, 10:11 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac4c2c6b048190b603e9562dde65d0 completed March 7, 2026, 4:02 p.m.
NEDg Description generation batch_69ac4ca07ce88190bfbf959adc84a74e completed March 7, 2026, 4:04 p.m.
NED2 Entity disambiguation (via description) batch_69ac4d3f62c881908e189bfe8cbbd2ac completed March 7, 2026, 4:07 p.m.
Created at: March 1, 2026, 7:42 p.m.