M100 series trains
E412713
The M100 series trains are the original electric multiple units that have operated on the Helsinki Metro since its opening, known for their robust design and long service life.
All labels observed (2)
| Label | Occurrences |
|---|---|
| M100 metro trains | 1 |
| M100 series trains canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4098523 — 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: M100 series trains Context triple: [Helsinki Metro, usesRollingStock, M100 series trains]
-
A.
Class 800 trains
Class 800 trains are modern bi-mode high-speed multiple units used on Britain’s mainline rail network, notably on intercity routes operated by companies such as London North Eastern Railway.
-
B.
30000-series EMU
The 30000-series EMU is a modern electric multiple unit train used on Osaka Metro, featuring improved energy efficiency, passenger comfort, and accessibility compared to earlier rolling stock.
-
C.
70 series EMU
The 70 series EMU is a type of electric multiple unit train used for passenger services on Osaka Metro’s Nagahori Tsurumi-ryokuchi Line in Japan.
-
D.
Mark VII trains
Mark VII trains are the modern generation of streamlined, retro-futuristic monorail vehicles that serve as the primary passenger trains on the Disneyland Monorail System.
-
E.
21-series EMU
The 21-series EMU is a type of electric multiple unit train used for urban rapid transit services on Japan’s Osaka Metro network.
- 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: M100 series trains Target entity description: The M100 series trains are the original electric multiple units that have operated on the Helsinki Metro since its opening, known for their robust design and long service life.
-
A.
Class 800 trains
Class 800 trains are modern bi-mode high-speed multiple units used on Britain’s mainline rail network, notably on intercity routes operated by companies such as London North Eastern Railway.
-
B.
30000-series EMU
The 30000-series EMU is a modern electric multiple unit train used on Osaka Metro, featuring improved energy efficiency, passenger comfort, and accessibility compared to earlier rolling stock.
-
C.
70 series EMU
The 70 series EMU is a type of electric multiple unit train used for passenger services on Osaka Metro’s Nagahori Tsurumi-ryokuchi Line in Japan.
-
D.
Mark VII trains
Mark VII trains are the modern generation of streamlined, retro-futuristic monorail vehicles that serve as the primary passenger trains on the Disneyland Monorail System.
-
E.
21-series EMU
The 21-series EMU is a type of electric multiple unit train used for urban rapid transit services on Japan’s Osaka Metro network.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Helsinki Metro train type
ⓘ
electric multiple unit ⓘ metro rolling stock ⓘ |
| accessType | high-platform boarding ⓘ |
| brakeType |
electrodynamic brakes
ⓘ
pneumatic brakes ⓘ |
| builtFor | Helsinki City Transport ⓘ |
| canOperateAs | multiple-unit trainsets ⓘ |
| controlSystem | conventional relay-based control ⓘ |
| country | Finland ⓘ |
| designedBy | Finnish rolling stock engineers ⓘ |
| designedFor |
heavy metro operation
ⓘ
high-frequency urban transit ⓘ |
| designedServiceLife | several decades of intensive use ⓘ |
| designedToWithstand | Nordic climate conditions ⓘ |
| doorConfiguration | multiple side doors per car for fast boarding ⓘ |
| enteredServiceInDecade | 1980s ⓘ |
| enteredServiceInYear | 1982 ⓘ |
| environment |
surface sections
ⓘ
underground sections ⓘ |
| gauge | standard gauge ⓘ |
| hasFormation | permanently coupled two-car units ⓘ |
| introducedOnLine |
Helsinki Metro main line
ⓘ
linked to:
Helsinki Metro
|
| knownFor |
long service life
ⓘ
reliability ⓘ robust design ⓘ |
| network |
Helsinki Metro network
ⓘ
linked to:
Helsinki Metro
|
| operatingArea |
Helsinki metropolitan area
ⓘ
linked to:
Greater Helsinki
|
| operator |
HKL
ⓘ
Helsinki City Transport ⓘ |
| partOf | rolling stock fleet of Helsinki Metro ⓘ |
| powerCollectionMethod | third rail ⓘ |
| propulsion | electric traction motors ⓘ |
| refurbished | yes ⓘ |
| refurbishmentPurpose |
extend service life
ⓘ
modernize interiors ⓘ update technical systems ⓘ |
| role | original rolling stock of the Helsinki Metro ⓘ |
| safetySystem | automatic train protection ⓘ |
| serves | Helsinki Metro ⓘ |
| serviceType |
rapid transit
ⓘ
urban rail ⓘ |
| status |
in passenger service
ⓘ
oldest trains in regular Helsinki Metro operation ⓘ |
| tractionType | electric ⓘ |
| usedOn |
line M1 of Helsinki Metro
ⓘ
line M2 of Helsinki Metro ⓘ |
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: M100 series trains Description of subject: The M100 series trains are the original electric multiple units that have operated on the Helsinki Metro since its opening, known for their robust design and long service life.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: M100 series trains