PSA
E686296
PSA is the three-letter IATA airport code for Pisa International Airport in Pisa, Italy.
All labels observed (1)
| Label | Occurrences |
|---|---|
| PSA canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T7749165 — 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: PSA Context triple: [Pisa International Airport, IATAcode, PSA]
-
A.
PSA
The PSA is a landmark U.S. federal law enacted in 1921 to regulate fair competition and trade practices in the livestock, meatpacking, and poultry industries.
-
B.
PSA
PSA is the major port operator and logistics company that manages and develops Singapore’s world-leading container terminals.
-
C.
PSS
PSS is the French and Italian abbreviation for the Social Democratic Party of Switzerland, a major center-left political party advocating social justice and welfare policies.
-
D.
PSB
PSB is the division of the New York City Police Department responsible for overseeing and coordinating the city’s uniformed patrol operations across its precincts and boroughs.
-
E.
PSB
PSB is Adobe Photoshop’s large document file format designed to handle images exceeding the size and layer limits of standard PSD files.
- 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: PSA Target entity description: PSA is the three-letter IATA airport code for Pisa International Airport in Pisa, Italy.
-
A.
PSA
The PSA is a landmark U.S. federal law enacted in 1921 to regulate fair competition and trade practices in the livestock, meatpacking, and poultry industries.
-
B.
PSA
PSA is the major port operator and logistics company that manages and develops Singapore’s world-leading container terminals.
-
C.
PSS
PSS is the French and Italian abbreviation for the Social Democratic Party of Switzerland, a major center-left political party advocating social justice and welfare policies.
-
D.
PSB
PSB is the division of the New York City Police Department responsible for overseeing and coordinating the city’s uniformed patrol operations across its precincts and boroughs.
-
E.
PSB
PSB is Adobe Photoshop’s large document file format designed to handle images exceeding the size and layer limits of standard PSD files.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf | IATA airport code ⓘ |
| airportName | Pisa International Airport ⓘ |
| airportType | public ⓘ |
| alsoKnownAs |
Galileo Galilei Airport
ⓘ
linked to:
Pisa International Airport
|
| assignedBy | International Air Transport Association ⓘ |
| associatedRunwaySurface | asphalt ⓘ |
| cityServed | Pisa ⓘ |
| codeFormat | three-letter code ⓘ |
| codeType |
IATA
ⓘ
linked to:
International Air Transport Association
|
| country | Italy ⓘ |
| hasICAOCode | LIRP ⓘ |
| locatedIn |
Italy
ⓘ
Pisa ⓘ Tuscany ⓘ |
| namedAfter | Galileo Galilei ⓘ |
| refersTo | Pisa International Airport ⓘ |
| serves |
civil aviation
ⓘ
military aviation ⓘ |
| servesRegion |
Central Italy
ⓘ
Tuscany ⓘ |
| timeZone | Central European Time ⓘ |
| timeZoneDST | Central European Summer Time ⓘ |
| usedFor |
airline timetables
ⓘ
baggage tags ⓘ ticketing ⓘ |
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: PSA Description of subject: PSA is the three-letter IATA airport code for Pisa International Airport in Pisa, Italy.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.