Black Widow II
E750150
Black Widow II is the nickname of the Northrop/McDonnell Douglas YF-23, an experimental stealth fighter prototype developed for the U.S. Air Force’s Advanced Tactical Fighter program.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Black Widow II canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8671660 — 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: Black Widow II Context triple: [YF-23 Black Widow II, nickname, Black Widow II]
-
A.
Black Widow
Black Widow is a giant pendulum thrill ride at Kennywood amusement park known for its high-speed swinging and spinning motions that create intense sensations of weightlessness.
-
B.
Black Widow
Black Widow is a modernist sculptural mobile by Alexander Calder, exemplifying his innovative use of abstract forms and suspended movement.
-
C.
Black Widow
"Black Widow" is a 2021 Marvel Cinematic Universe superhero film centered on Natasha Romanoff that explores her past as a spy and her ties to a covert Russian program.
-
D.
Black Widows
The Black Widows are a covert group of highly trained female assassins and spies in the Marvel Cinematic Universe, created and controlled through the Red Room program.
-
E.
Madame Web
Madame Web is a 2024 superhero film in Sony's Spider-Man Universe that follows a clairvoyant paramedic who gains psychic abilities and becomes entangled in a web of destiny.
- 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: Black Widow II Target entity description: Black Widow II is the nickname of the Northrop/McDonnell Douglas YF-23, an experimental stealth fighter prototype developed for the U.S. Air Force’s Advanced Tactical Fighter program.
-
A.
Black Widow
Black Widow is a giant pendulum thrill ride at Kennywood amusement park known for its high-speed swinging and spinning motions that create intense sensations of weightlessness.
-
B.
Black Widow
Black Widow is a modernist sculptural mobile by Alexander Calder, exemplifying his innovative use of abstract forms and suspended movement.
-
C.
Black Widow
"Black Widow" is a 2021 Marvel Cinematic Universe superhero film centered on Natasha Romanoff that explores her past as a spy and her ties to a covert Russian program.
-
D.
Black Widows
The Black Widows are a covert group of highly trained female assassins and spies in the Marvel Cinematic Universe, created and controlled through the Red Room program.
-
E.
Madame Web
Madame Web is a 2024 superhero film in Sony's Spider-Man Universe that follows a clairvoyant paramedic who gains psychic abilities and becomes entangled in a web of destiny.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
United States military aircraft
ⓘ
experimental aircraft ⓘ prototype fighter aircraft ⓘ |
| aircraftCategory | fifth-generation fighter prototype ⓘ |
| airframeConfiguration |
diamond-shaped wing
ⓘ
twin-engine ⓘ twin-tail ⓘ |
| alsoKnownAs |
Northrop YF-23
NERFINISHED
ⓘ
YF-23 NERFINISHED ⓘ |
| armamentConfiguration | internal weapons bays ⓘ |
| basedOnRequirement | USAF Advanced Tactical Fighter requirement ⓘ |
| competitorInProgram | Lockheed YF-22 NERFINISHED ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| crew | 1 ⓘ |
| designedByConsortium | Northrop/McDonnell Douglas team NERFINISHED ⓘ |
| designedForFeature |
high agility
ⓘ
long range ⓘ low observability ⓘ supercruise ⓘ |
| designEmphasis | stealth over extreme maneuverability ⓘ |
| developedFor | United States Air Force NERFINISHED ⓘ |
| developedForProgram | Advanced Tactical Fighter program NERFINISHED ⓘ |
| era |
Cold War late period
ⓘ
post–Cold War transition ⓘ |
| firstFlightDate | 1990-08-27 ⓘ |
| hasStealthCharacteristics | reduced radar cross-section ⓘ |
| intendedMissionProfile |
air superiority
ⓘ
deep interdiction ⓘ |
| lostCompetitionTo | Lockheed YF-22 NERFINISHED ⓘ |
| manufacturer |
McDonnell Douglas
NERFINISHED
ⓘ
Northrop NERFINISHED ⓘ |
| nicknameOf | Northrop/McDonnell Douglas YF-23 NERFINISHED ⓘ |
| numberBuilt | 2 prototypes ⓘ |
| powerplantType | turbofan ⓘ |
| primaryUser | United States Air Force (test only) ⓘ |
| programSponsor | United States Air Force NERFINISHED ⓘ |
| programType | Advanced Tactical Fighter technology demonstrator ⓘ |
| role |
air superiority fighter
ⓘ
tactical fighter ⓘ |
| selectionOutcome | not selected for production by USAF ⓘ |
| status |
not in production
ⓘ
program cancelled ⓘ prototype only ⓘ |
| successorAircraft | F-22 Raptor NERFINISHED ⓘ |
| testRole |
flight envelope exploration
ⓘ
stealth performance evaluation ⓘ supercruise demonstration ⓘ |
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: Black Widow II Description of subject: Black Widow II is the nickname of the Northrop/McDonnell Douglas YF-23, an experimental stealth fighter prototype developed for the U.S. Air Force’s Advanced Tactical Fighter program.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.