T4 Eastern Suburbs & Illawarra Line
E362869
The T4 Eastern Suburbs & Illawarra Line is a major Sydney Trains suburban rail line that runs from the city’s eastern suburbs through the southern suburbs to the Illawarra region.
All labels observed (4)
| Label | Occurrences |
|---|---|
| T4 Eastern Suburbs & Illawarra Line canonical | 7 |
| T4 Illawarra Line | 2 |
| Eastern Suburbs & Illawarra Line | 1 |
| Sydney Trains T4 line services | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3279471 — 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: T4 Eastern Suburbs & Illawarra Line Context triple: [Sydney Central station, connectsTo, T4 Eastern Suburbs & Illawarra Line]
-
A.
T3 Bankstown Line
The T3 Bankstown Line is a suburban passenger rail service in Sydney, Australia, connecting the city’s inner west and south-western suburbs via the Bankstown corridor.
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B.
T2 Inner West & Leppington Line
The T2 Inner West & Leppington Line is a suburban passenger rail service in Sydney, Australia, connecting the Inner West suburbs and Leppington to the central business district and other parts of the metropolitan rail network.
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C.
Sydney to Blue Mountains Intercity Line
The Sydney to Blue Mountains Intercity Line is a long-distance commuter rail service in New South Wales that connects central Sydney with the towns and scenic areas of the Blue Mountains region.
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D.
T8 Airport & South Line (Sydney Trains)
T8 Airport & South Line (Sydney Trains) is a suburban passenger rail service in Sydney that connects the city centre with the airport and southern suburbs as part of the Sydney Trains network.
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E.
Greenbush Line
The Greenbush Line is a Massachusetts Bay Transportation Authority commuter rail route serving Boston’s South Station and several South Shore communities.
- 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: T4 Eastern Suburbs & Illawarra Line Target entity description: The T4 Eastern Suburbs & Illawarra Line is a major Sydney Trains suburban rail line that runs from the city’s eastern suburbs through the southern suburbs to the Illawarra region.
-
A.
T3 Bankstown Line
The T3 Bankstown Line is a suburban passenger rail service in Sydney, Australia, connecting the city’s inner west and south-western suburbs via the Bankstown corridor.
-
B.
T2 Inner West & Leppington Line
The T2 Inner West & Leppington Line is a suburban passenger rail service in Sydney, Australia, connecting the Inner West suburbs and Leppington to the central business district and other parts of the metropolitan rail network.
-
C.
Sydney to Blue Mountains Intercity Line
The Sydney to Blue Mountains Intercity Line is a long-distance commuter rail service in New South Wales that connects central Sydney with the towns and scenic areas of the Blue Mountains region.
-
D.
T8 Airport & South Line (Sydney Trains)
T8 Airport & South Line (Sydney Trains) is a suburban passenger rail service in Sydney that connects the city centre with the airport and southern suburbs as part of the Sydney Trains network.
-
E.
Greenbush Line
The Greenbush Line is a Massachusetts Bay Transportation Authority commuter rail route serving Boston’s South Station and several South Shore communities.
- F. None of above. chosen
Statements (44)
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: T4 Eastern Suburbs & Illawarra Line Description of subject: The T4 Eastern Suburbs & Illawarra Line is a major Sydney Trains suburban rail line that runs from the city’s eastern suburbs through the southern suburbs to the Illawarra region.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Sydney Trains B set
subject surface form:
Sydney Trains H set
this entity surface form:
Sydney Trains T4 line services
this entity surface form:
T4 Illawarra Line
this entity surface form:
T4 Illawarra Line
T4 Eastern Suburbs & Illawarra Line
→
formerName
→
T4 Eastern Suburbs & Illawarra Line
self-linksurface differs
ⓘ
this entity surface form:
Eastern Suburbs & Illawarra Line