Presto
E50833
Presto is a discontinued proprietary browser engine developed by Opera Software that powered older versions of the Opera web browser.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Presto canonical | 6 |
| Firebird | 1 |
| Opera Neon | 1 |
| Presto 2.x | 1 |
| Presto-based Opera | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T400873 — 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: Presto Context triple: [Opera Software, previousBrowserEngineUsed, Presto]
-
A.
Philortyx
Philortyx is a genus of New World quails known for their ground-dwelling habits and occurrence in scrub and grassland habitats of the Americas.
-
B.
Swoop
Swoop is the Philadelphia Eagles’ official bald eagle mascot, known for entertaining fans at games and team events.
-
C.
Primo
Primo is an Italian masculine given name most famously associated with the writer and Holocaust survivor Primo Levi.
-
D.
Pandora
Pandora is a figure from Greek mythology best known as the first woman whose curiosity led her to open a forbidden container, releasing all the evils into the world while leaving only hope inside.
-
E.
Limelight
Limelight is a 1952 drama film written, directed by, and starring Charlie Chaplin, in which he portrays a faded music-hall comedian who befriends and mentors a young ballerina.
- 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: Presto Target entity description: Presto is a discontinued proprietary browser engine developed by Opera Software that powered older versions of the Opera web browser.
-
A.
Philortyx
Philortyx is a genus of New World quails known for their ground-dwelling habits and occurrence in scrub and grassland habitats of the Americas.
-
B.
Swoop
Swoop is the Philadelphia Eagles’ official bald eagle mascot, known for entertaining fans at games and team events.
-
C.
Primo
Primo is an Italian masculine given name most famously associated with the writer and Holocaust survivor Primo Levi.
-
D.
Pandora
Pandora is a figure from Greek mythology best known as the first woman whose curiosity led her to open a forbidden container, releasing all the evils into the world while leaving only hope inside.
-
E.
Limelight
Limelight is a 1952 drama film written, directed by, and starring Charlie Chaplin, in which he portrays a faded music-hall comedian who befriends and mentors a young ballerina.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
browser engine
ⓘ
software ⓘ |
| companyHeadquartersOfDeveloper |
Oslo, Norway (Opera Software)
ⓘ
linked to:
Oslo
|
| developer | Opera Software ⓘ |
| discontinued | true ⓘ |
| feature |
fast page rendering
ⓘ
incremental layout ⓘ support for multiple platforms ⓘ tabbed browsing support (via Opera) ⓘ |
| notableFor | being replaced when Opera switched to Chromium/Blink ⓘ |
| operatingSystem |
FreeBSD
ⓘ
Linux ⓘ Microsoft Windows ⓘ
linked to:
Windows
Solaris ⓘ
linked to:
Solaris operating system
macOS ⓘ mobile operating systems (via Opera Mobile) ⓘ |
| poweredVersionOf | older versions of Opera ⓘ |
| renderingEngineFor | Opera browser user interface ⓘ |
| replacedBy | Blink ⓘ |
| softwareLicense | proprietary software license ⓘ |
| status | discontinued browser engine ⓘ |
| supports |
AJAX
ⓘ
CSS ⓘ DOM ⓘ ECMAScript ⓘ HTML ⓘ JavaScript ⓘ SVG ⓘ XHTML ⓘ XML ⓘ |
| supportsStandard | W3C web standards (partial) ⓘ |
| usedBy |
Opera 10
ⓘ
Opera 11 ⓘ
linked to:
Opera 12
Opera 12 ⓘ Opera 7 ⓘ
linked to:
Opera web browser
Opera 8 ⓘ
linked to:
Opera web browser
Opera 9 ⓘ |
| usedIn |
Nintendo DS Browser
ⓘ
linked to:
Nintendo DS
Nintendo DSi Browser ⓘ Opera Mini (server-side rendering) ⓘ
linked to:
Opera Mini
Opera Mobile ⓘ Opera web browser ⓘ Wii Internet Channel ⓘ some embedded devices ⓘ |
| writtenInProgrammingLanguage | C++ ⓘ |
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: Presto Description of subject: Presto is a discontinued proprietary browser engine developed by Opera Software that powered older versions of the Opera web browser.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Presto
subject linked to:
Opera web browser
linked to: Presto
linked to: Presto
subject linked to:
CSS rendering engines