Petaluma Downtown station
E913376
Petaluma Downtown station is a Sonoma–Marin Area Rail Transit (SMART) commuter rail station serving the historic downtown area of Petaluma, California.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Petaluma Downtown station canonical | 2 |
| Petaluma–North station | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11240024 — 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: Petaluma Downtown station Context triple: [Petaluma, California, hasRailStation, Petaluma Downtown station]
-
A.
Palo Alto station
Palo Alto station is a major commuter rail stop in Palo Alto, California, serving as a key hub on the Caltrain line between San Francisco and San Jose.
-
B.
Daly City station
Daly City station is a Bay Area Rapid Transit (BART) rapid transit station serving the city of Daly City just south of San Francisco, California.
-
C.
Hillsdale Caltrain station
Hillsdale Caltrain station is a commuter rail stop in San Mateo, California, serving Caltrain passengers along the San Francisco Peninsula.
-
D.
Santa Rosa station
Santa Rosa station is a transit stop on Line 4A of the local rail network, serving passengers in its surrounding urban area.
-
E.
Emeryville station
Emeryville station is a major Amtrak rail terminal in Emeryville, California, serving as the primary San Francisco–area hub and western terminus for long-distance routes like the California Zephyr.
- 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: Petaluma Downtown station Target entity description: Petaluma Downtown station is a Sonoma–Marin Area Rail Transit (SMART) commuter rail station serving the historic downtown area of Petaluma, California.
-
A.
Palo Alto station
Palo Alto station is a major commuter rail stop in Palo Alto, California, serving as a key hub on the Caltrain line between San Francisco and San Jose.
-
B.
Daly City station
Daly City station is a Bay Area Rapid Transit (BART) rapid transit station serving the city of Daly City just south of San Francisco, California.
-
C.
Hillsdale Caltrain station
Hillsdale Caltrain station is a commuter rail stop in San Mateo, California, serving Caltrain passengers along the San Francisco Peninsula.
-
D.
Santa Rosa station
Santa Rosa station is a transit stop on Line 4A of the local rail network, serving passengers in its surrounding urban area.
-
E.
Emeryville station
Emeryville station is a major Amtrak rail terminal in Emeryville, California, serving as the primary San Francisco–area hub and western terminus for long-distance routes like the California Zephyr.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail station
ⓘ
railway station ⓘ |
| accessible | yes ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| county | Sonoma County NERFINISHED ⓘ |
| fareSystem | SMART Clipper-based fare system ⓘ |
| hasAbbreviation | Petaluma Downtown NERFINISHED ⓘ |
| hasBicycleFacilities | yes ⓘ |
| hasParking | yes ⓘ |
| hasPlatformType | island platform ⓘ |
| hasServiceType | commuter rail ⓘ |
| hasStructureType | at-grade station ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Petaluma, California NERFINISHED ⓘ Sonoma County, California NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
|
| near |
Historic downtown Petaluma commercial district
NERFINISHED
ⓘ
Petaluma River NERFINISHED ⓘ |
| numberOfPlatforms | 1 ⓘ |
| numberOfTracks | 2 ⓘ |
| openingDate | 2017-08-25 ⓘ |
| operator | Sonoma–Marin Area Rail Transit NERFINISHED ⓘ |
| partOf | Sonoma–Marin Area Rail Transit system NERFINISHED ⓘ |
| railwayLine | Sonoma–Marin Area Rail Transit main line NERFINISHED ⓘ |
| serves |
Petaluma, California
NERFINISHED
ⓘ
SMART commuter rail NERFINISHED ⓘ historic downtown Petaluma ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| zone | SMART fare zone 3 ⓘ |
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: Petaluma Downtown station Description of subject: Petaluma Downtown station is a Sonoma–Marin Area Rail Transit (SMART) commuter rail station serving the historic downtown area of Petaluma, California.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Petaluma–North station