U9 line
E830729
The U9 line is a major Berlin U-Bahn subway route running north–south through the city and serving districts such as Wilmersdorf.
All labels observed (2)
| Label | Occurrences |
|---|---|
| U9 line canonical | 1 |
| U9 underground line | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9942339 — 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: U9 line Context triple: [Wilmersdorf, publicTransport, U9 line]
-
A.
U7 line
The U7 line is a route of the Frankfurt U-Bahn rapid transit system that runs across the city and serves major central stations including Hauptwache.
-
B.
U5 line
The U5 line is a major Berlin U-Bahn route running east–west that connects central hubs like Alexanderplatz with eastern districts of the city.
-
C.
U1 line
The U1 line is a route of the Frankfurt U-Bahn rapid transit system that connects central Frankfurt with several northern suburbs.
-
D.
U6 line
The U6 line is a route of the Frankfurt U-Bahn rapid transit system that connects various districts across the city, including central hubs such as Hauptwache.
-
E.
U3 line
The U3 line is a route of the Frankfurt U-Bahn rapid transit system that connects central Frankfurt with its northwestern suburbs.
- 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: U9 line Target entity description: The U9 line is a major Berlin U-Bahn subway route running north–south through the city and serving districts such as Wilmersdorf.
-
A.
U7 line
The U7 line is a route of the Frankfurt U-Bahn rapid transit system that runs across the city and serves major central stations including Hauptwache.
-
B.
U5 line
The U5 line is a major Berlin U-Bahn route running east–west that connects central hubs like Alexanderplatz with eastern districts of the city.
-
C.
U1 line
The U1 line is a route of the Frankfurt U-Bahn rapid transit system that connects central Frankfurt with several northern suburbs.
-
D.
U6 line
The U6 line is a route of the Frankfurt U-Bahn rapid transit system that connects various districts across the city, including central hubs such as Hauptwache.
-
E.
U3 line
The U3 line is a route of the Frankfurt U-Bahn rapid transit system that connects central Frankfurt with its northwestern suburbs.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
Berlin U-Bahn line
ⓘ
rapid transit line ⓘ |
| country | Germany ⓘ |
| direction | north–south ⓘ |
| electrification | third rail ⓘ |
| hasColor | orange ⓘ |
| hasMode | underground railway ⓘ |
| lineNumber | U9 ⓘ |
| locatedIn | Berlin ⓘ |
| locatedInContinent | Europe ⓘ |
| operator | Berliner Verkehrsbetriebe ⓘ |
| owner | Berliner Verkehrsbetriebe ⓘ |
| partOfNetwork |
Berlin U-Bahn network
ⓘ
linked to:
Berlin U-Bahn
|
| servesDistrict |
Mitte
ⓘ
Schöneberg ⓘ Steglitz ⓘ
linked to:
Steglitz-Zehlendorf
Tiergarten ⓘ Wedding ⓘ Wilmersdorf ⓘ |
| servesFunction | urban public transport ⓘ |
| system | Berlin U-Bahn ⓘ |
| terminusNorth | Osloer Straße ⓘ |
| terminusSouth | Rathaus Steglitz ⓘ |
| trackGauge | standard gauge ⓘ |
| transitType | subway ⓘ |
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: U9 line Description of subject: The U9 line is a major Berlin U-Bahn subway route running north–south through the city and serving districts such as Wilmersdorf.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: U9 line