Booster 4
E307041
Booster 4 is a prototype SpaceX Super Heavy first-stage rocket used in early integrated testing of the Starship launch system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Booster 4 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2882432 — 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: Booster 4 Context triple: [Super Heavy booster, firstFlightVehicle, Booster 4]
-
A.
The Rocket
The Rocket was an early 19th-century steam locomotive designed by George Stephenson that became famous for winning the 1829 Rainhill Trials and proving the viability of railway transport.
-
B.
Boomerang
Boomerang is a television network known for airing classic and contemporary animated programming, particularly cartoons from the Warner Bros. and Hanna-Barbera libraries.
-
C.
Boomerang
Boomerang is a 1992 romantic comedy film starring Eddie Murphy that follows a suave advertising executive whose womanizing ways are challenged when he meets his match.
-
D.
Starhopper
Starhopper is SpaceX’s early prototype test vehicle used to validate key technologies for the Starship launch system, particularly its Raptor engines and vertical takeoff and landing capabilities.
-
E.
Boomerang II
Boomerang II is a lesser-known track by Irish rock band U2, released as a B-side during their mid-1980s era.
- 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: Booster 4 Target entity description: Booster 4 is a prototype SpaceX Super Heavy first-stage rocket used in early integrated testing of the Starship launch system.
-
A.
The Rocket
The Rocket was an early 19th-century steam locomotive designed by George Stephenson that became famous for winning the 1829 Rainhill Trials and proving the viability of railway transport.
-
B.
Boomerang
Boomerang is a 1992 romantic comedy film starring Eddie Murphy that follows a suave advertising executive whose womanizing ways are challenged when he meets his match.
-
C.
Boomerang
Boomerang is a television network known for airing classic and contemporary animated programming, particularly cartoons from the Warner Bros. and Hanna-Barbera libraries.
-
D.
Starhopper
Starhopper is SpaceX’s early prototype test vehicle used to validate key technologies for the Starship launch system, particularly its Raptor engines and vertical takeoff and landing capabilities.
-
E.
Boomerang II
Boomerang II is a lesser-known track by Irish rock band U2, released as a B-side during their mid-1980s era.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
SpaceX Super Heavy booster
ⓘ
prototype rocket stage ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| engineType | Raptor ⓘ |
| hasComponent |
grid fins
ⓘ
methane tank ⓘ oxygen tank ⓘ thrust section ⓘ |
| launchPad |
Orbital Launch Mount at Starbase
ⓘ
linked to:
Orbital Launch Mount
|
| launchVehicle | Starship ⓘ |
| locatedIn | Boca Chica, Texas ⓘ |
| manufacturer | SpaceX ⓘ |
| operator | SpaceX ⓘ |
| partOf | Starship launch system ⓘ |
| program |
SpaceX Starship program
ⓘ
linked to:
Starship (SpaceX)
|
| propellantType |
liquid methane
ⓘ
liquid oxygen ⓘ |
| rocketFamily |
Super Heavy
ⓘ
linked to:
Super Heavy booster
|
| rocketStage | first stage ⓘ |
| stackedWith | Ship 20 ⓘ |
| status | retired ⓘ |
| testArticleNumber | B4 ⓘ |
| testRole | early integrated testing of Starship system ⓘ |
| testType |
cryogenic proof tests
ⓘ
static fire tests ⓘ |
| usedAt | Starbase ⓘ |
| usedFor |
fit checks
ⓘ
ground tests ⓘ integrated testing ⓘ launch pad integration tests ⓘ |
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: Booster 4 Description of subject: Booster 4 is a prototype SpaceX Super Heavy first-stage rocket used in early integrated testing of the Starship launch system.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.