M1
E262760
M1 is the first and primary north–south metro line of the Warsaw Metro system in Poland.
All labels observed (1)
| Label | Occurrences |
|---|---|
| M1 canonical | 15 |
How this entity was disambiguated
This entity first appeared as the object of triple T2400512 — 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: M1 Context triple: [Warsaw Metro, hasLine, M1]
-
A.
M1
M1 is a boat line that operates as part of Geneva’s public transport network, providing passenger service across the city’s waters.
-
B.
M11
M11 is a major motorway in England that connects London to Cambridge and the East Anglia region.
-
C.
MI1
MI1 was an early British military intelligence section responsible for handling secret information and code-related work before later intelligence agencies were formally established.
-
D.
M4
M4 is a boat line that operates as part of Geneva’s public transport network, providing passenger service across Lake Geneva.
-
E.
M2
M2 is a major British motorway that connects London with the port town of Dover in Kent, serving as an important route to the Channel ports.
- 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: M1 Target entity description: M1 is the first and primary north–south metro line of the Warsaw Metro system in Poland.
-
A.
M1
M1 is a boat line that operates as part of Geneva’s public transport network, providing passenger service across the city’s waters.
-
B.
M11
M11 is a major motorway in England that connects London to Cambridge and the East Anglia region.
-
C.
MI1
MI1 was an early British military intelligence section responsible for handling secret information and code-related work before later intelligence agencies were formally established.
-
D.
M4
M4 is a boat line that operates as part of Geneva’s public transport network, providing passenger service across Lake Geneva.
-
E.
M2
M2 is a major British motorway that connects London with the port town of Dover in Kent, serving as an important route to the Channel ports.
- F. None of above. chosen
Statements (24)
| Predicate | Object |
|---|---|
| instanceOf |
metro line
ⓘ
rapid transit line ⓘ |
| cityServed | Warsaw ⓘ |
| continent | Europe ⓘ |
| country | Poland ⓘ |
| direction | north–south ⓘ |
| electrification | third rail ⓘ |
| fareSystem | ZTM Warsaw ⓘ |
| hasRollingStockType |
Alstom Metropolis
ⓘ
Siemens Inspiro ⓘ |
| isFirstLineOf | Warsaw Metro ⓘ |
| isPrimaryLineOf | Warsaw Metro ⓘ |
| lineNumber | 1 ⓘ |
| locatedIn |
Poland
ⓘ
Warsaw ⓘ |
| numberOfTracks | 2 ⓘ |
| operator | Metro Warszawskie ⓘ |
| owner |
Warsaw
ⓘ
surface form:
City of Warsaw
|
| partOf | Warsaw Metro ⓘ |
| publicTransportAuthority | ZTM Warsaw ⓘ |
| serves | left-bank Warsaw ⓘ |
| system | Warsaw Metro ⓘ |
| trackGauge | standard gauge ⓘ |
| transitType | 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: M1 Description of subject: M1 is the first and primary north–south metro line of the Warsaw Metro system in Poland.
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.