Triple
T22161644
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Sacramento Northern Railway |
E547684
|
entity |
| Predicate | formedByMergerOf |
P77
|
FINISHED |
| Object |
Oakland, Antioch and Eastern Railway
The Oakland, Antioch and Eastern Railway was an early 20th-century electric interurban railroad in Northern California that later became a key component of the Sacramento Northern Railway system.
|
E547684
|
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: Oakland, Antioch and Eastern Railway | Statement: [Sacramento Northern Railway, formedByMergerOf, Oakland, Antioch and Eastern Railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Oakland, Antioch and Eastern Railway Context triple: [Sacramento Northern Railway, formedByMergerOf, Oakland, Antioch and Eastern Railway]
-
A.
Sacramento Northern Railway
The Sacramento Northern Railway was an interurban electric railway in Northern California that connected the San Francisco Bay Area with the Sacramento Valley and was later controlled by the Western Pacific Railroad.
-
B.
Los Angeles Railway
Los Angeles Railway was a historic streetcar transit system that operated an extensive network of urban rail lines in Los Angeles during the first half of the 20th century.
-
C.
Sacramento Southern Railroad
The Sacramento Southern Railroad is a heritage railway in Sacramento, California, offering excursion train rides along the Sacramento River as part of the California State Railroad Museum’s operations.
-
D.
Sacramento Valley Railroad
The Sacramento Valley Railroad was one of California’s earliest railroads, built in the 1850s to connect Sacramento with nearby mining regions during the Gold Rush era.
-
E.
Valley and Siletz Railroad
The Valley and Siletz Railroad was a short line railway in Oregon that primarily served logging and timber operations in the early to mid-20th century.
- 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: Oakland, Antioch and Eastern Railway Triple: [Sacramento Northern Railway, formedByMergerOf, Oakland, Antioch and Eastern Railway]
Generated description
The Oakland, Antioch and Eastern Railway was an early 20th-century electric interurban railroad in Northern California that later became a key component of the Sacramento Northern Railway system.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Oakland, Antioch and Eastern Railway Target entity description: The Oakland, Antioch and Eastern Railway was an early 20th-century electric interurban railroad in Northern California that later became a key component of the Sacramento Northern Railway system.
-
A.
Sacramento Northern Railway
chosen
The Sacramento Northern Railway was an interurban electric railway in Northern California that connected the San Francisco Bay Area with the Sacramento Valley and was later controlled by the Western Pacific Railroad.
-
B.
Los Angeles Railway
Los Angeles Railway was a historic streetcar transit system that operated an extensive network of urban rail lines in Los Angeles during the first half of the 20th century.
-
C.
Sacramento Southern Railroad
The Sacramento Southern Railroad is a heritage railway in Sacramento, California, offering excursion train rides along the Sacramento River as part of the California State Railroad Museum’s operations.
-
D.
Sacramento Valley Railroad
The Sacramento Valley Railroad was one of California’s earliest railroads, built in the 1850s to connect Sacramento with nearby mining regions during the Gold Rush era.
-
E.
Valley and Siletz Railroad
The Valley and Siletz Railroad was a short line railway in Oregon that primarily served logging and timber operations in the early to mid-20th century.
- 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_69e11e3c4c5c81908d336165816b12e0 |
completed | April 16, 2026, 5:37 p.m. |
| NER | Named-entity recognition | batch_69f12a2d8064819094d27ef9f15c6a1f |
completed | April 28, 2026, 9:44 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a0a9eba95d48190bc19f69531dbb752 |
completed | May 18, 2026, 5:08 a.m. |
| NEDg | Description generation | batch_6a0aa06763b48190ab0ecdf90de4f463 |
completed | May 18, 2026, 5:15 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a0aa0c4d1648190b04e6a6cc7afd756 |
completed | May 18, 2026, 5:16 a.m. |
Created at: April 16, 2026, 8:34 p.m.