Metrolink 91/Perris Valley Line
E118000
Metrolink 91/Perris Valley Line is a Southern California commuter rail route connecting Los Angeles with Riverside and the Perris Valley, providing regional passenger service through the Inland Empire.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Metrolink 91/Perris Valley Line canonical | 9 |
| 91/Perris Valley Line | 6 |
| Metrolink 91/Perris Valley Line corridor | 1 |
| Metrolink 91/Perris Valley Line station | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T950306 — 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: Metrolink 91/Perris Valley Line Context triple: [Riverside, servedByRail, Metrolink 91/Perris Valley Line]
-
A.
Metrolink Antelope Valley Line
The Metrolink Antelope Valley Line is a Southern California commuter rail route that connects Los Angeles with communities in the Antelope Valley, including Lancaster and Palmdale.
-
B.
Metrolink Inland Empire–Orange County Line
The Metrolink Inland Empire–Orange County Line is a Southern California commuter rail route connecting cities in the Inland Empire with destinations in Orange County and beyond.
-
C.
Metrolink
Metrolink is the light rail tram system serving Greater Manchester, England, connecting central Manchester with surrounding towns and key destinations across the metropolitan area.
-
D.
Los Angeles Metro Rail
Los Angeles Metro Rail is a rapid transit system serving Los Angeles County, California, consisting of multiple light rail and subway lines that connect key neighborhoods, business districts, and regional destinations.
-
E.
LA Metro A Line
The LA Metro A Line is a light rail line in Los Angeles County that connects downtown Los Angeles with several surrounding communities, including Pasadena and Long Beach.
- 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: Metrolink 91/Perris Valley Line Target entity description: Metrolink 91/Perris Valley Line is a Southern California commuter rail route connecting Los Angeles with Riverside and the Perris Valley, providing regional passenger service through the Inland Empire.
-
A.
Metrolink Antelope Valley Line
The Metrolink Antelope Valley Line is a Southern California commuter rail route that connects Los Angeles with communities in the Antelope Valley, including Lancaster and Palmdale.
-
B.
Metrolink Inland Empire–Orange County Line
The Metrolink Inland Empire–Orange County Line is a Southern California commuter rail route connecting cities in the Inland Empire with destinations in Orange County and beyond.
-
C.
Metrolink
Metrolink is the light rail tram system serving Greater Manchester, England, connecting central Manchester with surrounding towns and key destinations across the metropolitan area.
-
D.
Los Angeles Metro Rail
Los Angeles Metro Rail is a rapid transit system serving Los Angeles County, California, consisting of multiple light rail and subway lines that connect key neighborhoods, business districts, and regional destinations.
-
E.
LA Metro A Line
The LA Metro A Line is a light rail line in Los Angeles County that connects downtown Los Angeles with several surrounding communities, including Pasadena and Long Beach.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail line
ⓘ
passenger rail service ⓘ |
| alternativeName |
91 Line
ⓘ
91/PV Line ⓘ |
| connects |
Los Angeles
ⓘ
Perris Valley ⓘ Riverside ⓘ |
| connectsTo |
Amtrak California
ⓘ
surface form:
Amtrak Pacific Surfliner at Fullerton
Union Station (Los Angeles) ⓘ
surface form:
Los Angeles Metro Rail at Union Station
other Metrolink lines at Riverside–Downtown ⓘ |
| electrification | non-electrified ⓘ |
| extensionOpened |
2016
ⓘ
Perris Valley extension ⓘ |
| fareSystem | Metrolink zone-based fares ⓘ |
| hasStation |
Corona–North Main station
ⓘ
Fullerton station ⓘ Union Station (Los Angeles) ⓘ
surface form:
Los Angeles Union Station
Moreno Valley/March Field station ⓘ Perris–South station ⓘ
surface form:
Perris–Downtown station
Perris–South station ⓘ Riverside–Downtown station ⓘ |
| lineColor | green ⓘ |
| locatedIn |
Southern California
ⓘ
United States of America ⓘ
surface form:
United States
|
| namedAfter |
State Route 91
ⓘ
surface form:
State Route 91 corridor
|
| opened | 1995 ⓘ |
| operator |
Metrolink (Southern California)
ⓘ
surface form:
Metrolink
|
| owner |
Metrolink (Southern California)
ⓘ
surface form:
Southern California Regional Rail Authority
|
| partOfNetwork |
Metrolink (Southern California)
ⓘ
surface form:
Metrolink system
|
| primaryUse | commuter transportation ⓘ |
| purpose |
provide regional passenger rail alternative to driving
ⓘ
reduce freeway congestion ⓘ |
| regionServed |
Greater Los Angeles Area
ⓘ
surface form:
Greater Los Angeles area
|
| routeType | regional rail ⓘ |
| serves |
Los Angeles County
ⓘ
Orange County, California ⓘ
surface form:
Orange County
Riverside County ⓘ |
| servesRegion | Inland Empire ⓘ |
| servicePattern |
limited weekend service
ⓘ
weekday commuter service ⓘ |
| sharesCorridorWith | BNSF Railway ⓘ |
| sharesTracksWith | freight trains ⓘ |
| terminus |
Union Station (Los Angeles)
ⓘ
surface form:
Los Angeles Union Station
Perris–South station ⓘ Riverside–Downtown station ⓘ |
| trackGauge | standard gauge ⓘ |
| usesRollingStock | diesel-powered commuter rail trains ⓘ |
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: Metrolink 91/Perris Valley Line Description of subject: Metrolink 91/Perris Valley Line is a Southern California commuter rail route connecting Los Angeles with Riverside and the Perris Valley, providing regional passenger service through the Inland Empire.
Referenced by (17)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Metrolink (Southern California)
this entity surface form:
91/Perris Valley Line
this entity surface form:
91/Perris Valley Line
this entity surface form:
Metrolink 91/Perris Valley Line station
this entity surface form:
Metrolink 91/Perris Valley Line corridor
this entity surface form:
91/Perris Valley Line
this entity surface form:
91/Perris Valley Line
this entity surface form:
91/Perris Valley Line
this entity surface form:
91/Perris Valley Line