Triple
T9285520
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Northwestern Pacific Railroad |
E223383
|
entity |
| Predicate | formedByMergerOf |
P77
|
FINISHED |
| Object |
Arcata and Mad River Railroad
Arcata and Mad River Railroad was a historic short-line logging and freight railroad in Northern California that served the timber industry around Arcata and the Mad River region.
|
E789372
|
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: Arcata and Mad River Railroad | Statement: [Northwestern Pacific Railroad, formedByMergerOf, Arcata and Mad River Railroad]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Arcata and Mad River Railroad Context triple: [Northwestern Pacific Railroad, formedByMergerOf, Arcata and Mad River Railroad]
-
A.
Oregon Coast Scenic Railroad
The Oregon Coast Scenic Railroad is a heritage railway offering scenic excursions along the Oregon coast using historic steam and diesel locomotives.
-
B.
Cumbres and Toltec Scenic Railroad
The Cumbres and Toltec Scenic Railroad is a historic narrow-gauge heritage railway running between Colorado and New Mexico, renowned for its preserved steam locomotives and dramatic Rocky Mountain scenery.
-
C.
Calico Railroad
Calico Railroad is a themed narrow-gauge train attraction that recreates an Old West mining railroad experience for guests.
-
D.
Arcata and Mad River Transit System
Arcata and Mad River Transit System is a local public bus network serving the city of Arcata and the surrounding Mad River area in Humboldt County, California.
-
E.
Cass Scenic Railroad
Cass Scenic Railroad is a historic heritage railway in West Virginia that operates restored steam-driven logging trains through the mountains as a popular tourist attraction.
- 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: Arcata and Mad River Railroad Triple: [Northwestern Pacific Railroad, formedByMergerOf, Arcata and Mad River Railroad]
Generated description
Arcata and Mad River Railroad was a historic short-line logging and freight railroad in Northern California that served the timber industry around Arcata and the Mad River region.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Arcata and Mad River Railroad Target entity description: Arcata and Mad River Railroad was a historic short-line logging and freight railroad in Northern California that served the timber industry around Arcata and the Mad River region.
-
A.
Oregon Coast Scenic Railroad
The Oregon Coast Scenic Railroad is a heritage railway offering scenic excursions along the Oregon coast using historic steam and diesel locomotives.
-
B.
Cumbres and Toltec Scenic Railroad
The Cumbres and Toltec Scenic Railroad is a historic narrow-gauge heritage railway running between Colorado and New Mexico, renowned for its preserved steam locomotives and dramatic Rocky Mountain scenery.
-
C.
Calico Railroad
Calico Railroad is a themed narrow-gauge train attraction that recreates an Old West mining railroad experience for guests.
-
D.
Arcata and Mad River Transit System
Arcata and Mad River Transit System is a local public bus network serving the city of Arcata and the surrounding Mad River area in Humboldt County, California.
-
E.
Cass Scenic Railroad
Cass Scenic Railroad is a historic heritage railway in West Virginia that operates restored steam-driven logging trains through the mountains as a popular tourist attraction.
- 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_69ca8422ddf881908a3f8f876c9f53aa |
completed | March 30, 2026, 2:09 p.m. |
| NER | Named-entity recognition | batch_69cd081fe8cc8190b6c1b481c7129689 |
completed | April 1, 2026, 11:57 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d0b21d8f1081909b2493151fde4a5f |
completed | April 4, 2026, 6:39 a.m. |
| NEDg | Description generation | batch_69d0b3234d088190a8ed13b4d4772fb5 |
completed | April 4, 2026, 6:43 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69d0b3bcd5548190ba1af3d0fa72780a |
completed | April 4, 2026, 6:46 a.m. |
Created at: March 30, 2026, 7:35 p.m.