Triple
T10121054
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tilden Regional Park |
E223288
|
entity |
| Predicate | hasPart |
P35
|
FINISHED |
| Object |
Redwood Valley Railway
Redwood Valley Railway is a miniature live steam railroad in Tilden Regional Park that offers scenic train rides through the Berkeley Hills.
|
E842526
|
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: Redwood Valley Railway | Statement: [Tilden Regional Park, hasPart, Redwood Valley Railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Redwood Valley Railway Context triple: [Tilden Regional Park, hasPart, Redwood Valley Railway]
-
A.
Wallkill Valley Railroad
The Wallkill Valley Railroad was a historic rail line in New York’s Hudson Valley that played a key role in the region’s 19th- and early 20th-century transportation and industrial development.
-
B.
Grapevine Vintage Railroad
Grapevine Vintage Railroad is a historic excursion railway in Grapevine, Texas, offering scenic rides on vintage trains and locomotives for tourists and rail enthusiasts.
-
C.
Oregon Trunk Railway
The Oregon Trunk Railway was a historic railroad line in central Oregon that provided a key north–south route along the Deschutes River, later integrated into the regional network of the Spokane, Portland and Seattle Railway.
-
D.
Calico Railroad
Calico Railroad is a themed narrow-gauge train attraction that recreates an Old West mining railroad experience for guests.
-
E.
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.
- 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: Redwood Valley Railway Triple: [Tilden Regional Park, hasPart, Redwood Valley Railway]
Generated description
Redwood Valley Railway is a miniature live steam railroad in Tilden Regional Park that offers scenic train rides through the Berkeley Hills.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Redwood Valley Railway Target entity description: Redwood Valley Railway is a miniature live steam railroad in Tilden Regional Park that offers scenic train rides through the Berkeley Hills.
-
A.
Wallkill Valley Railroad
The Wallkill Valley Railroad was a historic rail line in New York’s Hudson Valley that played a key role in the region’s 19th- and early 20th-century transportation and industrial development.
-
B.
Grapevine Vintage Railroad
Grapevine Vintage Railroad is a historic excursion railway in Grapevine, Texas, offering scenic rides on vintage trains and locomotives for tourists and rail enthusiasts.
-
C.
Oregon Trunk Railway
The Oregon Trunk Railway was a historic railroad line in central Oregon that provided a key north–south route along the Deschutes River, later integrated into the regional network of the Spokane, Portland and Seattle Railway.
-
D.
Calico Railroad
Calico Railroad is a themed narrow-gauge train attraction that recreates an Old West mining railroad experience for guests.
-
E.
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.
- 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_69ca8422047c81909d66b717b8b18cf3 |
completed | March 30, 2026, 2:09 p.m. |
| NER | Named-entity recognition | batch_69cdd266b18c8190b35fe637c912e756 |
completed | April 2, 2026, 2:20 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d2cc493db88190b3b09a77b82b3cc9 |
completed | April 5, 2026, 8:55 p.m. |
| NEDg | Description generation | batch_69d2cd901c148190afb27759cc176f89 |
completed | April 5, 2026, 9:01 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69d2ce6da82081908ca6b3621971ca9a |
completed | April 5, 2026, 9:04 p.m. |
Created at: March 30, 2026, 9:04 p.m.