Triple
T5219822
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Coast Daylight |
E117842
|
entity |
| Predicate | railLineUsed |
P15040
|
FINISHED |
| Object |
SP Coast Line between Los Angeles and San Francisco
The SP Coast Line between Los Angeles and San Francisco is a historic Southern Pacific Railroad coastal route in California known for its scenic ocean views and passenger services such as the famed Coast Daylight.
|
E504062
|
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: SP Coast Line between Los Angeles and San Francisco | Statement: [Coast Daylight, railLineUsed, SP Coast Line between Los Angeles and San Francisco]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: SP Coast Line between Los Angeles and San Francisco Context triple: [Coast Daylight, railLineUsed, SP Coast Line between Los Angeles and San Francisco]
-
A.
West Coast Express
West Coast Express is a commuter rail service in British Columbia, Canada, that operates weekday trains between downtown Vancouver and its eastern suburbs along the north shore of the Fraser River.
-
B.
Los Angeles–New Orleans rail corridor
The Los Angeles–New Orleans rail corridor is a major transcontinental rail route linking Southern California to the U.S. Gulf Coast, used for both freight and long-distance passenger service.
-
C.
San Joaquins route
The San Joaquins route is an Amtrak passenger rail service in California that connects the San Francisco Bay Area and Sacramento with the Central Valley and Bakersfield.
-
D.
Alameda/Oakland–San Francisco route
The Alameda/Oakland–San Francisco route is a commuter and tourist ferry service across San Francisco Bay connecting the East Bay cities of Alameda and Oakland with San Francisco.
-
E.
Vallejo–San Francisco route
The Vallejo–San Francisco route is a commuter and leisure passenger ferry service across San Pablo Bay linking the city of Vallejo with San Francisco.
- 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: SP Coast Line between Los Angeles and San Francisco Triple: [Coast Daylight, railLineUsed, SP Coast Line between Los Angeles and San Francisco]
Generated description
The SP Coast Line between Los Angeles and San Francisco is a historic Southern Pacific Railroad coastal route in California known for its scenic ocean views and passenger services such as the famed Coast Daylight.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: SP Coast Line between Los Angeles and San Francisco Target entity description: The SP Coast Line between Los Angeles and San Francisco is a historic Southern Pacific Railroad coastal route in California known for its scenic ocean views and passenger services such as the famed Coast Daylight.
-
A.
West Coast Express
West Coast Express is a commuter rail service in British Columbia, Canada, that operates weekday trains between downtown Vancouver and its eastern suburbs along the north shore of the Fraser River.
-
B.
Los Angeles–New Orleans rail corridor
The Los Angeles–New Orleans rail corridor is a major transcontinental rail route linking Southern California to the U.S. Gulf Coast, used for both freight and long-distance passenger service.
-
C.
San Joaquins route
The San Joaquins route is an Amtrak passenger rail service in California that connects the San Francisco Bay Area and Sacramento with the Central Valley and Bakersfield.
-
D.
Alameda/Oakland–San Francisco route
The Alameda/Oakland–San Francisco route is a commuter and tourist ferry service across San Francisco Bay connecting the East Bay cities of Alameda and Oakland with San Francisco.
-
E.
Vallejo–San Francisco route
The Vallejo–San Francisco route is a commuter and leisure passenger ferry service across San Pablo Bay linking the city of Vallejo with San Francisco.
- 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_69bd4465e03081909bfcfd7113062590 |
completed | March 20, 2026, 12:58 p.m. |
| NER | Named-entity recognition | batch_69bd7ab6e63c8190964b2b65a0206134 |
completed | March 20, 2026, 4:49 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69beeff0b15081908741aadfd351811c |
completed | March 21, 2026, 7:22 p.m. |
| NEDg | Description generation | batch_69bef309c230819094ed6ae3fefe6e5b |
completed | March 21, 2026, 7:35 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69bef36c88f4819082931dbe1bb13f89 |
completed | March 21, 2026, 7:37 p.m. |
Created at: March 20, 2026, 1:48 p.m.