SX
E1019194
SX is the National Rail operator code used to identify Stansted Express train services in the United Kingdom.
All labels observed (1)
| Label | Occurrences |
|---|---|
| SX canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13102982 — 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: SX Context triple: [Stansted Express, hasOperatorCode, SX]
-
A.
SX
SX is the two-letter ISO 3166-1 alpha-2 country code assigned to Sint Maarten, a constituent country of the Kingdom of the Netherlands in the Caribbean.
-
B.
OX
OX is the postcode area covering Oxford and its surrounding region in Oxfordshire, England.
-
C.
EX
EX is a UK postcode area covering Exeter and surrounding parts of Devon.
-
D.
XX
XX is the Super Bowl game for which the 1985 AFC Championship Game determined the American Football Conference representative.
-
E.
CX
CX is the two-letter IATA airline designator used to identify Cathay Pacific in global aviation systems.
- 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: SX Target entity description: SX is the National Rail operator code used to identify Stansted Express train services in the United Kingdom.
-
A.
SX
SX is the two-letter ISO 3166-1 alpha-2 country code assigned to Sint Maarten, a constituent country of the Kingdom of the Netherlands in the Caribbean.
-
B.
OX
OX is the postcode area covering Oxford and its surrounding region in Oxfordshire, England.
-
C.
EX
EX is a UK postcode area covering Exeter and surrounding parts of Devon.
-
D.
XX
XX is the Super Bowl game for which the 1985 AFC Championship Game determined the American Football Conference representative.
-
E.
CX
CX is the two-letter IATA airline designator used to identify Cathay Pacific in global aviation systems.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
National Rail service code
ⓘ
train service identifier ⓘ |
| appliesTo | Stansted Express ⓘ |
| associatedWithStation |
London Liverpool Street railway station
ⓘ
linked to:
London Liverpool Street
Stansted Airport railway station ⓘ |
| codeSpace | National Rail timetable codes ⓘ |
| contextOfUse |
journey planners
ⓘ
operational planning systems ⓘ timetables ⓘ |
| country | United Kingdom ⓘ |
| governingStandard |
UK rail timetable coding conventions
ⓘ
linked to:
National Rail station code
|
| identifies | specific Stansted Express train services in schedules ⓘ |
| notationType | alphanumeric code ⓘ |
| operatorCategory | passenger rail service ⓘ |
| primaryPurpose | linking central London with Stansted Airport ⓘ |
| railNetwork | National Rail ⓘ |
| railServiceBrand | Stansted Express ⓘ |
| regionServed | England ⓘ |
| route |
London Liverpool Street–Stansted Airport
ⓘ
linked to:
London Liverpool Street to Stansted Airport
|
| serviceScope | inter-city/airport express ⓘ |
| serviceType | airport rail link ⓘ |
| transportMode | rail ⓘ |
| usedBy |
National Rail Enquiries
ⓘ
UK rail industry timetabling systems ⓘ |
| usedFor | identifying Stansted Express services ⓘ |
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: SX Description of subject: SX is the National Rail operator code used to identify Stansted Express train services in the United Kingdom.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.