IE 8520 Class
E886108
The IE 8520 Class is a modern electric multiple unit train operated by Iarnród Éireann for Dublin’s DART suburban rail services.
All labels observed (1)
| Label | Occurrences |
|---|---|
| IE 8520 Class canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10741657 — 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: IE 8520 Class Context triple: [DART, usesRollingStockClass, IE 8520 Class]
-
A.
IE 8510 Class
The IE 8510 Class is a series of electric multiple unit trains operated by Iarnród Éireann for Dublin's DART suburban rail services.
-
B.
IE 8100 Class
The IE 8100 Class is a series of electric multiple unit trains operated by Iarnród Éireann for Dublin’s DART suburban rail services.
-
C.
IE 8500 Class
The IE 8500 Class is a series of electric multiple unit trains operated by Iarnród Éireann for Dublin’s DART suburban rail services.
-
D.
Class 158
Class 158 is a British diesel multiple unit train widely used on regional and intercity services, known for its higher comfort and speed compared to older provincial stock.
-
E.
IEN 41
IEN 41 is an early Internet Experiment Note documenting research and design considerations in the formative stages of the ARPANET/Internet protocols.
- 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: IE 8520 Class Target entity description: The IE 8520 Class is a modern electric multiple unit train operated by Iarnród Éireann for Dublin’s DART suburban rail services.
-
A.
IE 8510 Class
The IE 8510 Class is a series of electric multiple unit trains operated by Iarnród Éireann for Dublin's DART suburban rail services.
-
B.
IE 8100 Class
The IE 8100 Class is a series of electric multiple unit trains operated by Iarnród Éireann for Dublin’s DART suburban rail services.
-
C.
IE 8500 Class
The IE 8500 Class is a series of electric multiple unit trains operated by Iarnród Éireann for Dublin’s DART suburban rail services.
-
D.
Class 158
Class 158 is a British diesel multiple unit train widely used on regional and intercity services, known for its higher comfort and speed compared to older provincial stock.
-
E.
IEN 41
IEN 41 is an early Internet Experiment Note documenting research and design considerations in the formative stages of the ARPANET/Internet protocols.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
electric multiple unit
ⓘ
passenger train ⓘ |
| brakeType | electro-pneumatic brakes ⓘ |
| category |
DART rolling stock
ⓘ
Irish electric multiple units ⓘ |
| controlSystem | driver-operated cab controls ⓘ |
| countryOfOperation | Ireland ⓘ |
| couplingType | automatic couplers ⓘ |
| designedFor |
high-frequency suburban operation
ⓘ
rapid acceleration and braking ⓘ |
| doorType | power-operated sliding doors ⓘ |
| electrificationSystem | 1500 V DC overhead line ⓘ |
| gauge |
1600 mm
ⓘ
Irish gauge ⓘ |
| hasFeature |
electric doors
ⓘ
interior lighting ⓘ multiple-unit control ⓘ passenger information systems ⓘ seated accommodation ⓘ |
| multipleWorking | with other DART EMUs ⓘ |
| operator |
Dublin Area Rapid Transit
ⓘ
Iarnród Éireann ⓘ |
| owner | Iarnród Éireann ⓘ |
| passengerAccess | high-platform boarding ⓘ |
| powerCollectionMethod | overhead line ⓘ |
| primaryCityServed | Dublin ⓘ |
| propulsion | electric traction motors ⓘ |
| railNetwork | DART ⓘ |
| railwayCompany | Iarnród Éireann ⓘ |
| railwaySystem | Irish railway system ⓘ |
| regionServed |
Greater Dublin Area
ⓘ
linked to:
Dublin Region
|
| routeType | electrified lines ⓘ |
| serviceStatus | in service ⓘ |
| serviceType |
commuter rail
ⓘ
suburban rail ⓘ |
| tractionType | electric ⓘ |
| trainType | multiple unit ⓘ |
| usedFor |
commuter services
ⓘ
passenger transport ⓘ suburban services ⓘ |
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: IE 8520 Class Description of subject: The IE 8520 Class is a modern electric multiple unit train operated by Iarnród Éireann for Dublin’s DART suburban rail services.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.