Triple
T6018049
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | St. Louis–San Francisco Railway |
E133994
|
entity |
| Predicate | predecessor |
P97
|
FINISHED |
| Object |
Atlantic and Pacific Railroad
The Atlantic and Pacific Railroad was a 19th-century American railroad company chartered to build a transcontinental line linking the Midwest to the Pacific Coast, portions of which later became part of the St. Louis–San Francisco Railway.
|
E133994
|
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: Atlantic and Pacific Railroad | Statement: [St. Louis–San Francisco Railway, predecessor, Atlantic and Pacific Railroad]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Atlantic and Pacific Railroad Context triple: [St. Louis–San Francisco Railway, predecessor, Atlantic and Pacific Railroad]
-
A.
Western Pacific Railroad
Western Pacific Railroad was a major American railroad company that operated primarily in the western United States, known for its scenic transcontinental routes and competitive service against larger carriers like the Southern Pacific.
-
B.
Northwestern Pacific Railroad
The Northwestern Pacific Railroad was a historic rail line in Northern California that connected the San Francisco Bay Area to communities throughout Marin, Sonoma, and Humboldt counties, supporting regional passenger and freight transport.
-
C.
St. Louis–San Francisco Railway
The St. Louis–San Francisco Railway, commonly known as the Frisco, was a major American railroad that operated in the central and south-central United States from the late 19th to the mid-20th century.
-
D.
Central Pacific Railroad
The Central Pacific Railroad was a major 19th-century American railroad company that built the western portion of the First Transcontinental Railroad, linking California to the eastern United States and transforming transportation and commerce.
-
E.
Winchester and Western Railroad
Winchester and Western Railroad is a regional shortline railroad that operates freight services in parts of the Mid-Atlantic United States, including the South Jersey area.
- 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: Atlantic and Pacific Railroad Triple: [St. Louis–San Francisco Railway, predecessor, Atlantic and Pacific Railroad]
Generated description
The Atlantic and Pacific Railroad was a 19th-century American railroad company chartered to build a transcontinental line linking the Midwest to the Pacific Coast, portions of which later became part of the St. Louis–San Francisco Railway.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Atlantic and Pacific Railroad Target entity description: The Atlantic and Pacific Railroad was a 19th-century American railroad company chartered to build a transcontinental line linking the Midwest to the Pacific Coast, portions of which later became part of the St. Louis–San Francisco Railway.
-
A.
Western Pacific Railroad
Western Pacific Railroad was a major American railroad company that operated primarily in the western United States, known for its scenic transcontinental routes and competitive service against larger carriers like the Southern Pacific.
-
B.
Northwestern Pacific Railroad
The Northwestern Pacific Railroad was a historic rail line in Northern California that connected the San Francisco Bay Area to communities throughout Marin, Sonoma, and Humboldt counties, supporting regional passenger and freight transport.
-
C.
St. Louis–San Francisco Railway
chosen
The St. Louis–San Francisco Railway, commonly known as the Frisco, was a major American railroad that operated in the central and south-central United States from the late 19th to the mid-20th century.
-
D.
Central Pacific Railroad
The Central Pacific Railroad was a major 19th-century American railroad company that built the western portion of the First Transcontinental Railroad, linking California to the eastern United States and transforming transportation and commerce.
-
E.
Winchester and Western Railroad
Winchester and Western Railroad is a regional shortline railroad that operates freight services in parts of the Mid-Atlantic United States, including the South Jersey area.
- 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_69c008742a5c8190b9cb9c2787a3d8b3 |
completed | March 22, 2026, 3:19 p.m. |
| NER | Named-entity recognition | batch_69c04f8458588190a78aa32cbdbecfb1 |
completed | March 22, 2026, 8:22 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c1136a4720819092bf2c6a9101c71b |
completed | March 23, 2026, 10:18 a.m. |
| NEDg | Description generation | batch_69c113efd9d88190a1ee7bbed4863a11 |
completed | March 23, 2026, 10:20 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c1146097a88190bdd0345da094607e |
completed | March 23, 2026, 10:22 a.m. |
Created at: March 22, 2026, 4:07 p.m.