Coaster (San Diego)
E200496
Coaster (San Diego) is a commuter rail service in San Diego County, California, providing passenger train connections along the coastal corridor between Oceanside and downtown San Diego.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Coaster (San Diego) canonical | 4 |
| COASTER rail line between Oceanside and San Diego | 1 |
| NCTD COASTER (at Oceanside) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1791972 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Coaster (San Diego) Context triple: [Siemens Charger, operator, Coaster (San Diego)]
-
A.
Six Flags Great America
Six Flags Great America is a major Chicago-area amusement park known for its large collection of roller coasters and family attractions.
-
B.
California’s Great America
California’s Great America is a large amusement park in Santa Clara, California, known for its roller coasters, family rides, and seasonal events.
-
C.
Six Flags Discovery Kingdom
Six Flags Discovery Kingdom is a marine life, wildlife, and thrill-ride theme park located in Vallejo, California, known for its roller coasters and animal exhibits.
-
D.
Six Flags Great Adventure
Six Flags Great Adventure is a major theme park and entertainment complex known for its large collection of roller coasters and thrill rides, located in Jackson, New Jersey.
-
E.
Six Flags America
Six Flags America is a major amusement and theme park featuring roller coasters, water rides, and family attractions located in the Washington, D.C. metropolitan area.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Coaster (San Diego) Target entity description: Coaster (San Diego) is a commuter rail service in San Diego County, California, providing passenger train connections along the coastal corridor between Oceanside and downtown San Diego.
-
A.
Six Flags Great America
Six Flags Great America is a major Chicago-area amusement park known for its large collection of roller coasters and family attractions.
-
B.
California’s Great America
California’s Great America is a large amusement park in Santa Clara, California, known for its roller coasters, family rides, and seasonal events.
-
C.
Six Flags Discovery Kingdom
Six Flags Discovery Kingdom is a marine life, wildlife, and thrill-ride theme park located in Vallejo, California, known for its roller coasters and animal exhibits.
-
D.
Six Flags Great Adventure
Six Flags Great Adventure is a major theme park and entertainment complex known for its large collection of roller coasters and thrill rides, located in Jackson, New Jersey.
-
E.
Six Flags America
Six Flags America is a major amusement and theme park featuring roller coasters, water rides, and family attractions located in the Washington, D.C. metropolitan area.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail service
ⓘ
passenger rail transport ⓘ |
| category |
Commuter rail in California
ⓘ
Rail transportation in San Diego County, California ⓘ |
| commuterMarket | North County to downtown San Diego ⓘ |
| connectsWith |
Amtrak California
ⓘ
surface form:
Amtrak Pacific Surfliner
Metrolink (Southern California) ⓘ
surface form:
Metrolink (via connections in Oceanside)
San Diego Trolley ⓘ local bus services in San Diego County ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | non-electrified ⓘ |
| fareSystem | regional transit fare system in San Diego County ⓘ |
| follows | Pacific coastline ⓘ |
| hasStation |
Carlsbad Poinsettia Station
ⓘ
surface form:
Carlsbad Poinsettia station
Carlsbad Village Station ⓘ
surface form:
Carlsbad Village station
Encinitas station ⓘ Oceanside Transit Center ⓘ Old Town Transit Center ⓘ Santa Fe Depot ⓘ Solana Beach station ⓘ Sorrento Valley station ⓘ |
| lineLength | approximately 41 miles ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
San Diego County ⓘ
surface form:
San Diego County, California
Southern California ⓘ |
| operator | North County Transit District ⓘ |
| owner | North County Transit District ⓘ |
| primaryUse |
commuter travel
ⓘ
regional passenger transport ⓘ |
| propulsion | diesel ⓘ |
| railCorridor |
San Diego Subdivision
ⓘ
surface form:
Los Angeles–San Diego–San Luis Obispo rail corridor
|
| regionServed | San Diego County ⓘ |
| routeDirection | north–south ⓘ |
| routeType | coastal rail corridor ⓘ |
| safetySystem | Positive Train Control ⓘ |
| servicePattern |
limited weekend service
ⓘ
weekday-focused service ⓘ |
| serviceType | commuter rail ⓘ |
| terminus |
Oceanside, California, United States
ⓘ
surface form:
Oceanside, California
San Diego, California, United States ⓘ
surface form:
San Diego, California
|
| terminusStation |
Oceanside Transit Center
ⓘ
Santa Fe Depot ⓘ |
| ticketing |
electronic fare media
ⓘ
paper tickets ⓘ |
| trackGauge | standard gauge ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Coaster (San Diego) Description of subject: Coaster (San Diego) is a commuter rail service in San Diego County, California, providing passenger train connections along the coastal corridor between Oceanside and downtown San Diego.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
COASTER rail line between Oceanside and San Diego
this entity surface form:
NCTD COASTER (at Oceanside)