Metra zone D
E842262
Metra zone D is a fare zone within the Metra commuter rail system in the Chicago metropolitan area, used to determine ticket prices for stations located at a similar distance from downtown Chicago.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Metra fare zone D | 1 |
| Metra zone D canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10116856 — 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: Metra zone D Context triple: [Highlands station, hasZone, Metra zone D]
-
A.
Metra zone E
Metra zone E is a commuter rail fare zone in the Chicago metropolitan area used to determine ticket prices on Metra’s zone-based system.
-
B.
Metra Electric District line
The Metra Electric District line is a commuter rail line in the Chicago metropolitan area that runs from downtown Chicago to its southern suburbs, serving key destinations along the South Side and beyond.
-
C.
Metra Rock Island District line
The Metra Rock Island District line is a commuter rail route in the Chicago metropolitan area that connects downtown Chicago with various southwest suburbs, including Tinley Park.
-
D.
Metra Heritage Corridor
The Metra Heritage Corridor is a commuter rail line in the Chicago metropolitan area that provides weekday service between Chicago Union Station and Joliet, Illinois, largely following the historic Illinois & Michigan Canal corridor.
-
E.
Metra
Metra is the commuter rail system serving the Chicago metropolitan area, operating extensive routes that connect the city with its surrounding suburbs.
- 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: Metra zone D Target entity description: Metra zone D is a fare zone within the Metra commuter rail system in the Chicago metropolitan area, used to determine ticket prices for stations located at a similar distance from downtown Chicago.
-
A.
Metra zone E
Metra zone E is a commuter rail fare zone in the Chicago metropolitan area used to determine ticket prices on Metra’s zone-based system.
-
B.
Metra Electric District line
The Metra Electric District line is a commuter rail line in the Chicago metropolitan area that runs from downtown Chicago to its southern suburbs, serving key destinations along the South Side and beyond.
-
C.
Metra Rock Island District line
The Metra Rock Island District line is a commuter rail route in the Chicago metropolitan area that connects downtown Chicago with various southwest suburbs, including Tinley Park.
-
D.
Metra Heritage Corridor
The Metra Heritage Corridor is a commuter rail line in the Chicago metropolitan area that provides weekday service between Chicago Union Station and Joliet, Illinois, largely following the historic Illinois & Michigan Canal corridor.
-
E.
Metra
Metra is the commuter rail system serving the Chicago metropolitan area, operating extensive routes that connect the city with its surrounding suburbs.
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf |
Metra fare zone
ⓘ
fare zone ⓘ |
| administeredBy | Metra ⓘ |
| appliesTo |
Metra commuter rail stations
ⓘ
linked to:
Metra stations
|
| appliesToTicketType |
monthly passes
ⓘ
one-way tickets ⓘ weekend passes ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| distanceBasis | distance from downtown Chicago ⓘ |
| fareCalculationMethod | origin–destination zone pairing ⓘ |
| fareIntegration | Metra system-wide fares ⓘ |
| fareMedium |
Metra passes
ⓘ
Metra tickets ⓘ |
| farePolicyRole | defines price levels between zones ⓘ |
| fareStructureType | zone-based ⓘ |
| fareSystemContext |
Metra zone A–M structure
ⓘ
linked to:
Metra Zone B
|
| hasCharacteristic | groups stations at similar distance from downtown Chicago ⓘ |
| hasZoneLabel | D ⓘ |
| isPublicTransitElement | yes ⓘ |
| locatedIn | Chicago metropolitan area ⓘ |
| partOf |
Metra
ⓘ
Metra zone-based fare system ⓘ |
| railSystem |
Metra commuter rail system
ⓘ
linked to:
Metra
|
| referencePoint | downtown Chicago ⓘ |
| regionServed | Chicago metropolitan area ⓘ |
| transportMode | commuter rail ⓘ |
| usedFor |
commuter rail fare calculation
ⓘ
determining Metra ticket prices ⓘ |
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: Metra zone D Description of subject: Metra zone D is a fare zone within the Metra commuter rail system in the Chicago metropolitan area, used to determine ticket prices for stations located at a similar distance from downtown Chicago.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Metra zone D