Opera
E578160
Opera is a metro station on Cairo's Line 2 serving the downtown area near the Cairo Opera House and surrounding cultural landmarks.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T6242370 — 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: Opera Context triple: [Cairo Metro Line 2, hasStation, Opera]
-
A.
Opera
Opera is a web browser known for its built-in features like a free VPN, ad blocker, and integrated messaging tools.
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B.
OPERA
OPERA was a long-baseline neutrino oscillation experiment at the Gran Sasso National Laboratory in Italy, designed to detect tau neutrinos in a beam sent from CERN.
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C.
The World of Opera
The World of Opera is a fantasy setting centered on grand operatic themes, performances, and drama within the broader Secondary Worlds universe.
-
D.
World Music Theatre
World Music Theatre is a large outdoor concert amphitheater in Tinley Park, Illinois, known for hosting major touring music acts and festivals.
-
E.
Music for the Theatre
Music for the Theatre is a 1925 jazz-influenced orchestral suite by Aaron Copland that blends modernist harmonies with theatrical, American vernacular styles.
- 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: Opera Target entity description: Opera is a metro station on Cairo's Line 2 serving the downtown area near the Cairo Opera House and surrounding cultural landmarks.
-
A.
Opera
Opera is a web browser known for its built-in features like a free VPN, ad blocker, and integrated messaging tools.
-
B.
OPERA
OPERA was a long-baseline neutrino oscillation experiment at the Gran Sasso National Laboratory in Italy, designed to detect tau neutrinos in a beam sent from CERN.
-
C.
The World of Opera
The World of Opera is a fantasy setting centered on grand operatic themes, performances, and drama within the broader Secondary Worlds universe.
-
D.
World Music Theatre
World Music Theatre is a large outdoor concert amphitheater in Tinley Park, Illinois, known for hosting major touring music acts and festivals.
-
E.
Music for the Theatre
Music for the Theatre is a 1925 jazz-influenced orchestral suite by Aaron Copland that blends modernist harmonies with theatrical, American vernacular styles.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
metro station
ⓘ
railway station ⓘ |
| category | Cairo Metro stations ⓘ |
| connectsTo | other Cairo Metro Line 2 stations ⓘ |
| country | Egypt ⓘ |
| fareSystem | Cairo Metro ticketing system ⓘ |
| fareZone | central Cairo zone ⓘ |
| hasLanguage |
Arabic signage
ⓘ
English signage ⓘ |
| hasPlatformType | island platform ⓘ |
| hasStructure | underground ⓘ |
| line | Line 2 NERFINISHED ⓘ |
| locatedIn |
Cairo
ⓘ
downtown Cairo NERFINISHED ⓘ |
| near |
Cairo Opera House
NERFINISHED
ⓘ
Egyptian Museum area NERFINISHED ⓘ Gezira Island NERFINISHED ⓘ Zamalek district NERFINISHED ⓘ |
| numberOfTracks | 2 ⓘ |
| openingDate | 1990s ⓘ |
| operator | National Authority for Tunnels NERFINISHED ⓘ |
| ownedBy | Egyptian government NERFINISHED ⓘ |
| partOf | Cairo Metro NERFINISHED ⓘ |
| serves |
Cairo Metro Line 2
NERFINISHED
ⓘ
cultural landmarks in central Cairo ⓘ |
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: Opera Description of subject: Opera is a metro station on Cairo's Line 2 serving the downtown area near the Cairo Opera House and surrounding cultural landmarks.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Ópera
this entity surface form:
Ópera