WAF
E915089
WAF is the three-letter station code used to identify Watford tube station on the London Underground network.
All labels observed (1)
| Label | Occurrences |
|---|---|
| WAF canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T11267164 — 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: WAF Context triple: [Watford tube station, stationCode, WAF]
-
A.
WAF
WAF is the vehicle registration code used on license plates for vehicles registered in the district of Warendorf in North Rhine-Westphalia, Germany.
-
B.
AWS WAF
AWS WAF is a cloud-based web application firewall service that helps protect web applications and APIs from common web exploits and bots.
-
C.
AIOWF
AIOWF is the collective body representing the international federations that govern sports featured in the Olympic Winter Games.
-
D.
WAFU
WAFU is the West African Football Union, a regional governing body for football in West Africa under the Confederation of African Football.
-
E.
WAS
WAS is the station code for Washington, D.C.’s main intercity and commuter rail hub, Union Station.
- 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: WAF Target entity description: WAF is the three-letter station code used to identify Watford tube station on the London Underground network.
-
A.
WAF
WAF is the vehicle registration code used on license plates for vehicles registered in the district of Warendorf in North Rhine-Westphalia, Germany.
-
B.
AWS WAF
AWS WAF is a cloud-based web application firewall service that helps protect web applications and APIs from common web exploits and bots.
-
C.
AIOWF
AIOWF is the collective body representing the international federations that govern sports featured in the Olympic Winter Games.
-
D.
WAFU
WAFU is the West African Football Union, a regional governing body for football in West Africa under the Confederation of African Football.
-
E.
WAS
WAS is the station code for Washington, D.C.’s main intercity and commuter rail hub, Union Station.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
station code
ⓘ
three-letter station code ⓘ |
| appliesTo | Watford tube station ⓘ |
| associatedWithLine | Metropolitan line ⓘ |
| category | London Underground station codes ⓘ |
| codeFormat | three letters ⓘ |
| country | United Kingdom ⓘ |
| hasLength | 3 characters ⓘ |
| identifierFor | railway station ⓘ |
| language | English ⓘ |
| locatedIn | Watford ⓘ |
| network | London Underground ⓘ |
| partOfSystem | London Underground station coding system ⓘ |
| refersTo |
Watford Underground station
ⓘ
linked to:
Watford tube station
|
| region | Hertfordshire ⓘ |
| script | Latin alphabet ⓘ |
| status | active code ⓘ |
| transportMode | rapid transit ⓘ |
| transportNetworkType | urban rail ⓘ |
| uniqueWithin |
London Underground network
ⓘ
linked to:
London Underground
|
| usedBy | Transport for London ⓘ |
| usedFor | identifying Watford tube station ⓘ |
| usedIn |
operational systems
ⓘ
passenger information systems ⓘ timetables ⓘ |
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: WAF Description of subject: WAF is the three-letter station code used to identify Watford tube station on the London Underground network.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.