Triple
T1003250
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Coast Starlight |
E21649
|
entity |
| Predicate | predecessorService |
P22193
|
FINISHED |
| Object |
Coast Daylight
Coast Daylight was a famous Southern Pacific Railroad daytime passenger train that ran along the scenic California coast between Los Angeles and San Francisco.
|
E117842
|
NE FINISHED |
How this triple was built (5 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: Coast Daylight | Statement: [Coast Starlight, predecessorService, Coast Daylight]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Coast Daylight Context triple: [Coast Starlight, predecessorService, Coast Daylight]
-
A.
Alaska Daylight Time
Alaska Daylight Time is the daylight saving time observed in most of the U.S. state of Alaska, running one hour ahead of Alaska Standard Time.
-
B.
Hawaii–Aleutian Standard Time
Hawaii–Aleutian Standard Time is the time zone used by Hawaii and part of the Aleutian Islands, typically 10 hours behind Coordinated Universal Time (UTC−10:00).
-
C.
Yukon Time Zone
The Yukon Time Zone is a North American time zone used primarily in Canada's Yukon territory, aligning year-round with Pacific Daylight Time.
-
D.
Anadyr Time
Anadyr Time is the time zone used in Russia’s far northeastern regions, including Chukotka and parts of the Russian Far East, offset well ahead of Coordinated Universal Time.
-
E.
Alaska Time Zone
The Alaska Time Zone is the standard time zone used by most of the U.S. state of Alaska, observing a time offset one hour behind Pacific Time.
- 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: Coast Daylight Triple: [Coast Starlight, predecessorService, Coast Daylight]
Generated description
Coast Daylight was a famous Southern Pacific Railroad daytime passenger train that ran along the scenic California coast between Los Angeles and San Francisco.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Coast Daylight Target entity description: Coast Daylight was a famous Southern Pacific Railroad daytime passenger train that ran along the scenic California coast between Los Angeles and San Francisco.
-
A.
Alaska Daylight Time
Alaska Daylight Time is the daylight saving time observed in most of the U.S. state of Alaska, running one hour ahead of Alaska Standard Time.
-
B.
Hawaii–Aleutian Standard Time
Hawaii–Aleutian Standard Time is the time zone used by Hawaii and part of the Aleutian Islands, typically 10 hours behind Coordinated Universal Time (UTC−10:00).
-
C.
Yukon Time Zone
The Yukon Time Zone is a North American time zone used primarily in Canada's Yukon territory, aligning year-round with Pacific Daylight Time.
-
D.
Anadyr Time
Anadyr Time is the time zone used in Russia’s far northeastern regions, including Chukotka and parts of the Russian Far East, offset well ahead of Coordinated Universal Time.
-
E.
Alaska Time Zone
The Alaska Time Zone is the standard time zone used by most of the U.S. state of Alaska, observing a time offset one hour behind Pacific Time.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: predecessorService Context triple: [Coast Starlight, predecessorService, Coast Daylight]
-
A.
predecessorSeries
Indicates that one series directly precedes another in an ordered sequence or lineage.
-
B.
predecessorState
Indicates that one state directly precedes another in a sequence or process.
-
C.
predecessorClass
Indicates that one class precedes another in an ordered sequence or hierarchy, typically representing an earlier version or prior stage of that class.
-
D.
predecessorInRole
Indicates that one entity previously held a particular role or position that was later occupied by another entity.
-
E.
predecessorName
Indicates that the value is the name of an entity that directly precedes another in an ordered sequence or lineage.
- F. None of above. chosen
Provenance (7 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_69a493c53e648190ae8cb76c433fd9a7 |
completed | March 1, 2026, 7:30 p.m. |
| NER | Named-entity recognition | batch_69a4b4fe0a548190aee8abf1890e141e |
completed | March 1, 2026, 9:51 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ac2a1ecddc8190b954d16c6e269498 |
completed | March 7, 2026, 1:37 p.m. |
| NEDg | Description generation | batch_69ac2a8dd818819088e6140e9a12594b |
completed | March 7, 2026, 1:39 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ac2af2efd88190b1da673aa3ead5fd |
completed | March 7, 2026, 1:41 p.m. |
| PD | Predicate disambiguation | batch_69a4b2b1f4f88190822598cfd2a0fd2b |
completed | March 1, 2026, 9:42 p.m. |
| PDg | Predicate description generation | batch_69a4b36064a48190b85c402f32cbadd1 |
completed | March 1, 2026, 9:45 p.m. |
Created at: March 1, 2026, 7:41 p.m.