The Tide light rail system
E92717
The Tide light rail system is an urban light rail transit network serving the city of Norfolk and surrounding areas in southeastern Virginia.
All labels observed (9)
How this entity was disambiguated
This entity first appeared as the object of triple T716932 — 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: The Tide light rail system Context triple: [Norfolk, Virginia, hasTransportation, The Tide light rail system]
-
A.
MAX Light Rail
MAX Light Rail is the metropolitan light rail transit system serving the Portland, Oregon, metropolitan area.
-
B.
DART Light Rail
DART Light Rail is a light rail transit system serving the Dallas–Fort Worth metropolitan area, operated by Dallas Area Rapid Transit.
-
C.
METRO light rail
METRO light rail is a rapid transit system serving the Minneapolis–Saint Paul metropolitan area with multiple color-designated lines connecting key urban, suburban, and airport destinations.
-
D.
Baltimore Light Rail
Baltimore Light Rail is a regional light rail transit system serving Baltimore, Maryland, and its surrounding suburbs.
-
E.
MetroLink light rail
MetroLink light rail is the bi-state light rail transit system serving the Greater St. Louis area, providing regional passenger rail service across parts of Missouri and Illinois.
- 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: The Tide light rail system Target entity description: The Tide light rail system is an urban light rail transit network serving the city of Norfolk and surrounding areas in southeastern Virginia.
-
A.
MAX Light Rail
MAX Light Rail is the metropolitan light rail transit system serving the Portland, Oregon, metropolitan area.
-
B.
DART Light Rail
DART Light Rail is a light rail transit system serving the Dallas–Fort Worth metropolitan area, operated by Dallas Area Rapid Transit.
-
C.
METRO light rail
METRO light rail is a rapid transit system serving the Minneapolis–Saint Paul metropolitan area with multiple color-designated lines connecting key urban, suburban, and airport destinations.
-
D.
Baltimore Light Rail
Baltimore Light Rail is a regional light rail transit system serving Baltimore, Maryland, and its surrounding suburbs.
-
E.
MetroLink light rail
MetroLink light rail is the bi-state light rail transit system serving the Greater St. Louis area, providing regional passenger rail service across parts of Missouri and Illinois.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
light rail system
ⓘ
public transportation system ⓘ urban rail transit system ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| electrification | overhead catenary ⓘ |
| fareSystem | Hampton Roads Transit fare system ⓘ |
| gauge | standard gauge ⓘ |
| hasBrandName | The Tide ⓘ |
| hasMode | rail ⓘ |
| isElectrified | yes ⓘ |
| isInMetropolitanArea | Norfolk–Virginia Beach metropolitan area ⓘ |
| isOwnedBy | public sector ⓘ |
| isUrbanRail | yes ⓘ |
| locatedIn |
Hampton Roads region
ⓘ
linked to:
Hampton Roads
Norfolk, Virginia ⓘ |
| openingDate | 2011-08-19 ⓘ |
| operator |
Hampton Roads Transit
ⓘ
linked to:
Hampton Roads Transit bus network
|
| owner | City of Norfolk ⓘ |
| partOf |
Hampton Roads public transit network
ⓘ
linked to:
Hampton Roads
|
| primaryCityServed | Norfolk, Virginia ⓘ |
| regionServed |
southeastern Virginia
ⓘ
linked to:
Southeastern Virginia
|
| serves |
Norfolk, Virginia
ⓘ
southeastern Virginia ⓘ |
| serviceType | urban transit ⓘ |
| transitType | light rail ⓘ |
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: The Tide light rail system Description of subject: The Tide light rail system is an urban light rail transit network serving the city of Norfolk and surrounding areas in southeastern Virginia.
Referenced by (17)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: The Tide light rail system
linked to: The Tide light rail system
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linked to: The Tide light rail system
linked to: The Tide light rail system
linked to: The Tide light rail system
linked to: The Tide light rail system
linked to: The Tide light rail system
linked to: The Tide light rail system
linked to: The Tide light rail system
linked to: The Tide light rail system
linked to: The Tide light rail system
linked to: The Tide light rail system
linked to: The Tide light rail system