Metra zone E
E643714
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.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Metra fare zone E | 1 |
| Metra fare zones | 1 |
| Metra zone E canonical | 1 |
| Zone E (Metra) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7128545 — 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 E Context triple: [Naperville station, fareZone, Metra zone E]
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
Metra
Metra is the commuter rail system serving the Chicago metropolitan area, operating extensive routes that connect the city with its surrounding suburbs.
-
E.
Metra North Central Service
Metra North Central Service is a commuter rail line in the Chicago metropolitan area that runs between downtown Chicago and northern suburbs, primarily serving communities along the I-94 and I-294 corridors.
- 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 E Target entity description: 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.
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
Metra
Metra is the commuter rail system serving the Chicago metropolitan area, operating extensive routes that connect the city with its surrounding suburbs.
-
E.
Metra North Central Service
Metra North Central Service is a commuter rail line in the Chicago metropolitan area that runs between downtown Chicago and northern suburbs, primarily serving communities along the I-94 and I-294 corridors.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Metra fare zone
ⓘ
commuter rail fare zone ⓘ |
| appliesOn |
BNSF Railway Line
ⓘ
linked to:
BNSF Railway line
Heritage Corridor ⓘ Metra Electric District ⓘ
linked to:
Metra Electric District line
Milwaukee District North Line ⓘ
linked to:
Metra Milwaukee District North Line
Milwaukee District West Line ⓘ
linked to:
Metra Milwaukee District West Line
North Central Service ⓘ
linked to:
North Central Service line
Rock Island District ⓘ SouthWest Service ⓘ
linked to:
SouthWest Service line
UP-North Line ⓘ UP-Northwest Line ⓘ UP-West Line ⓘ |
| appliesTo |
Metra tickets
ⓘ
commuter rail passengers ⓘ |
| centralReferencePoint |
Chicago Union Station
ⓘ
LaSalle Street Station ⓘ
linked to:
LaSalle Street Station (Metra)
Millennium Station ⓘ Ogilvie Transportation Center ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| currency | US dollar ⓘ |
| fareCalculationBasis | distance between zones ⓘ |
| fareCategory |
adult fares
ⓘ
reduced fares ⓘ special event fares ⓘ weekend fares ⓘ |
| fareDifferentiation |
higher fares than inner zones
ⓘ
lower fares than more distant zones ⓘ |
| fareMedium |
10-ride tickets
ⓘ
Ventra mobile tickets ⓘ monthly passes ⓘ paper tickets ⓘ |
| farePolicyAuthority | Metra Board of Directors ⓘ |
| fareStructureRole | origin-destination pricing ⓘ |
| fareSystemType | zone-based fare system ⓘ |
| fareZoneLabel | E ⓘ |
| fareZoneSystemOrder | outer zone relative to downtown Chicago ⓘ |
| locatedIn | Chicago metropolitan area ⓘ |
| operator | Metra ⓘ |
| partOf | Metra zone-based fare system ⓘ |
| purpose | determine ticket prices ⓘ |
| railNetwork |
Metra commuter rail system
ⓘ
linked to:
Metra
|
| transitSystem | Chicago-area commuter rail ⓘ |
| usedBy | Metra ⓘ |
| usedFor |
10-ride tickets
ⓘ
monthly passes ⓘ one-way tickets ⓘ weekend passes ⓘ |
| usedSince | 20th century ⓘ |
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 E Description of subject: 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.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Metra zone E
linked to: Metra zone E
linked to: Metra zone E