Triple

T11105205
Position Surface form Disambiguated ID Type / Status
Subject Southern Pacific Railroad E262609 entity
Predicate operated P1688 FINISHED
Object Cotton Belt Route (through St. Louis Southwestern Railway)
Cotton Belt Route (through St. Louis Southwestern Railway) was a regional American railroad system centered in the South and Midwest that became a key feeder and subsidiary line within the Southern Pacific Railroad network.
E905525 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: Cotton Belt Route (through St. Louis Southwestern Railway) | Statement: [Southern Pacific Railroad, operated, Cotton Belt Route (through St. Louis Southwestern Railway)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Cotton Belt Route (through St. Louis Southwestern Railway)
Context triple: [Southern Pacific Railroad, operated, Cotton Belt Route (through St. Louis Southwestern Railway)]
  • A. Missouri–Kansas–Texas Railroad
    The Missouri–Kansas–Texas Railroad, commonly known as the MKT or "the Katy," was a major American railroad that served the south-central United States, particularly linking Missouri, Kansas, Oklahoma, and Texas.
  • B. New York–St. Louis route
    The New York–St. Louis route was a major intercity passenger and freight rail corridor in the United States that connected the East Coast with the Midwest.
  • C. Colorado Central Railroad
    The Colorado Central Railroad was a 19th-century narrow-gauge railroad in Colorado that played a key role in serving the region’s mining communities and connecting mountain towns to larger rail networks.
  • D. St. Louis, Memphis and Southeastern Railroad
    The St. Louis, Memphis and Southeastern Railroad was a regional U.S. railroad line that operated in the early 20th century, later becoming part of the St. Louis–San Francisco Railway (Frisco) system.
  • E. St. Louis, Brownsville and Mexico Railway
    The St. Louis, Brownsville and Mexico Railway was an early 20th-century railroad that helped open and develop South Texas and the Rio Grande Valley by connecting the region to national rail networks.
  • 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: Cotton Belt Route (through St. Louis Southwestern Railway)
Triple: [Southern Pacific Railroad, operated, Cotton Belt Route (through St. Louis Southwestern Railway)]
Generated description
Cotton Belt Route (through St. Louis Southwestern Railway) was a regional American railroad system centered in the South and Midwest that became a key feeder and subsidiary line within the Southern Pacific Railroad network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Cotton Belt Route (through St. Louis Southwestern Railway)
Target entity description: Cotton Belt Route (through St. Louis Southwestern Railway) was a regional American railroad system centered in the South and Midwest that became a key feeder and subsidiary line within the Southern Pacific Railroad network.
  • A. Missouri–Kansas–Texas Railroad
    The Missouri–Kansas–Texas Railroad, commonly known as the MKT or "the Katy," was a major American railroad that served the south-central United States, particularly linking Missouri, Kansas, Oklahoma, and Texas.
  • B. New York–St. Louis route
    The New York–St. Louis route was a major intercity passenger and freight rail corridor in the United States that connected the East Coast with the Midwest.
  • C. Colorado Central Railroad
    The Colorado Central Railroad was a 19th-century narrow-gauge railroad in Colorado that played a key role in serving the region’s mining communities and connecting mountain towns to larger rail networks.
  • D. St. Louis, Memphis and Southeastern Railroad
    The St. Louis, Memphis and Southeastern Railroad was a regional U.S. railroad line that operated in the early 20th century, later becoming part of the St. Louis–San Francisco Railway (Frisco) system.
  • E. St. Louis, Brownsville and Mexico Railway
    The St. Louis, Brownsville and Mexico Railway was an early 20th-century railroad that helped open and develop South Texas and the Rio Grande Valley by connecting the region to national rail networks.
  • 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_69d6aa9a40d88190a373e2c7e48285db completed April 8, 2026, 7:20 p.m.
NER Named-entity recognition batch_69d79a2e319881909e66d3c0c73b56bc completed April 9, 2026, 12:23 p.m.
NED1 Entity disambiguation (via context triple) batch_69e42d7016908190bb7aadadacb5b50f completed April 19, 2026, 1:18 a.m.
NEDg Description generation batch_69e42f3dd02c8190b40bc692c24b2ff4 completed April 19, 2026, 1:26 a.m.
NED2 Entity disambiguation (via description) batch_69e4375eaf448190a17f8df1e83145e0 completed April 19, 2026, 2:01 a.m.
Created at: April 8, 2026, 9:27 p.m.