U4
E1082655
UNEXPLORED
U4 is one of Vienna’s main underground metro lines, running along the city’s central axis and connecting key districts and transport hubs.
All labels observed (2)
| Label | Occurrences |
|---|---|
| U4 canonical | 10 |
| U4 (during initial years of operation) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T14133244 — 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: U4 Context triple: [Schwedenplatz transport hub, servedByMetroLine, U4]
-
A.
U4
U4 is a line of the Frankfurt U-Bahn rapid transit system in Frankfurt, Germany.
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B.
U4
U4 is a line of the Munich U-Bahn rapid transit system serving several central and eastern districts of Munich, Germany.
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C.
U4
U4 is a light rail line of the Stuttgart Stadtbahn public transit network in Stuttgart, Germany.
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D.
U4
U4 is one of the shortest and oldest lines of the Berlin U-Bahn, running entirely within the central district of Schöneberg.
-
E.
U5
U5 is one of the lines of the Frankfurt U-Bahn rapid transit system in Frankfurt, Germany.
- 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: U4 Target entity description: U4 is one of Vienna’s main underground metro lines, running along the city’s central axis and connecting key districts and transport hubs.
-
A.
U4
U4 is a line of the Frankfurt U-Bahn rapid transit system in Frankfurt, Germany.
-
B.
U4
U4 is one of the shortest and oldest lines of the Berlin U-Bahn, running entirely within the central district of Schöneberg.
-
C.
U4
U4 is a line of the Munich U-Bahn rapid transit system serving several central and eastern districts of Munich, Germany.
-
D.
U4
U4 is a light rail line of the Stuttgart Stadtbahn public transit network in Stuttgart, Germany.
-
E.
U5
U5 is one of the lines of the Frankfurt U-Bahn rapid transit system in Frankfurt, Germany.
- F. None of above. chosen
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Schottenring
subject linked to:
HafenCity Universität U-Bahn station
linked to: U4