GCJ
E1046394
GCJ is the IATA airport code for Grand Central Airport, a regional airport serving the Midrand area near Johannesburg, South Africa.
All labels observed (1)
| Label | Occurrences |
|---|---|
| GCJ canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T13542865 — 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: GCJ Context triple: [Grand Central Airport, IATAcode, GCJ]
-
A.
GOJ
GOJ is the IATA airport code for Strigino International Airport serving Nizhny Novgorod, Russia.
-
B.
GJ
GJ is the vehicle registration code used on license plates for vehicles registered in Gjirokastër County, Albania.
-
C.
JCG
JCG is the maritime safety and law enforcement agency of Japan responsible for search and rescue, patrol, and security in the country's territorial waters and exclusive economic zone.
-
D.
GDJ
GDJ is the FAA location identifier for Granbury Regional Airport in Granbury, Texas.
-
E.
JGCD
JGCD is a leading peer-reviewed aerospace engineering journal focusing on guidance, navigation, control, and dynamics of flight vehicles and space 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: GCJ Target entity description: GCJ is the IATA airport code for Grand Central Airport, a regional airport serving the Midrand area near Johannesburg, South Africa.
-
A.
GOJ
GOJ is the IATA airport code for Strigino International Airport serving Nizhny Novgorod, Russia.
-
B.
GJ
GJ is the vehicle registration code used on license plates for vehicles registered in Gjirokastër County, Albania.
-
C.
JCG
JCG is the maritime safety and law enforcement agency of Japan responsible for search and rescue, patrol, and security in the country's territorial waters and exclusive economic zone.
-
D.
GDJ
GDJ is the FAA location identifier for Granbury Regional Airport in Granbury, Texas.
-
E.
JGCD
JGCD is a leading peer-reviewed aerospace engineering journal focusing on guidance, navigation, control, and dynamics of flight vehicles and space systems.
- F. None of above. chosen
Statements (13)
| Predicate | Object |
|---|---|
| instanceOf |
IATA airport code
ⓘ
airport ⓘ regional airport ⓘ |
| IATA code | GCJ ⓘ |
| IATA code for | Grand Central Airport ⓘ |
| locatedIn |
Midrand
ⓘ
Midrand ⓘ |
| locatedInCountry |
South Africa
ⓘ
South Africa ⓘ |
| locatedNear |
Johannesburg
ⓘ
linked to:
Johannesburg, South Africa
Johannesburg ⓘ
linked to:
Johannesburg, South Africa
|
| serves |
Johannesburg metropolitan area
ⓘ
linked to:
Johannesburg, South Africa
Midrand area ⓘ |
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: GCJ Description of subject: GCJ is the IATA airport code for Grand Central Airport, a regional airport serving the Midrand area near Johannesburg, South Africa.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.