PS4
E917630
PS4 is the fourth and uppermost stage of India's PSLV launch vehicle, using liquid propellants to perform final orbit insertion and orbital maneuvers.
All labels observed (1)
| Label | Occurrences |
|---|---|
| PS4 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11291197 — 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: PS4 Context triple: [PSLV-G, upperStageName, PS4]
-
A.
PlayStation 4
PlayStation 4 is a popular eighth-generation home video game console known for its powerful hardware, extensive game library, and online services.
-
B.
PlayStation 5
PlayStation 5 is Sony’s ninth-generation home video game console known for its high-speed SSD, advanced graphics capabilities, and support for immersive features like ray tracing and 3D audio.
-
C.
PlayStation
PlayStation is a popular line of video game consoles and gaming platforms developed by Sony, known for its extensive library of exclusive titles and global influence on the gaming industry.
-
D.
PlayStation Now
PlayStation Now is Sony’s cloud gaming subscription service that lets users stream and download a library of PlayStation games on compatible devices.
-
E.
Sony PlayStation 3
The Sony PlayStation 3 is a home video game console by Sony, notable for its Blu-ray support, online gaming via the PlayStation Network, and use of the advanced Cell microprocessor architecture.
- 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: PS4 Target entity description: PS4 is the fourth and uppermost stage of India's PSLV launch vehicle, using liquid propellants to perform final orbit insertion and orbital maneuvers.
-
A.
PlayStation 4
PlayStation 4 is a popular eighth-generation home video game console known for its powerful hardware, extensive game library, and online services.
-
B.
PlayStation 5
PlayStation 5 is Sony’s ninth-generation home video game console known for its high-speed SSD, advanced graphics capabilities, and support for immersive features like ray tracing and 3D audio.
-
C.
PlayStation
PlayStation is a popular line of video game consoles and gaming platforms developed by Sony, known for its extensive library of exclusive titles and global influence on the gaming industry.
-
D.
PlayStation Now
PlayStation Now is Sony’s cloud gaming subscription service that lets users stream and download a library of PlayStation games on compatible devices.
-
E.
Sony PlayStation 3
The Sony PlayStation 3 is a home video game console by Sony, notable for its Blu-ray support, online gaming via the PlayStation Network, and use of the advanced Cell microprocessor architecture.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
rocket stage
ⓘ
upper stage ⓘ |
| abbreviationOf | PSLV fourth stage ⓘ |
| countryOfOrigin | India ⓘ |
| launchSystem |
Indian launch vehicle PSLV
ⓘ
linked to:
Polar Satellite Launch Vehicle
|
| launchVehicle |
PSLV-CA
ⓘ
PSLV-G ⓘ PSLV-QM ⓘ PSLV-XL ⓘ |
| launchVehicleFamily |
PSLV family
ⓘ
linked to:
PSLV launch vehicle family
|
| manufacturer | Indian Space Research Organisation ⓘ |
| notableMission |
PSLV-C25 Mars Orbiter Mission
ⓘ
linked to:
Mars Orbiter Mission
PSLV-C37 record multi-satellite launch ⓘ |
| operator | Indian Space Research Organisation ⓘ |
| partOf |
PSLV
ⓘ
Polar Satellite Launch Vehicle ⓘ |
| positionInLaunchVehicle |
fourth stage
ⓘ
uppermost stage ⓘ |
| propellantType | liquid propellants ⓘ |
| propulsionType | liquid propulsion ⓘ |
| role |
final orbit insertion
ⓘ
orbital maneuvers ⓘ |
| stageNumber | 4 ⓘ |
| status | operational ⓘ |
| usedFor |
orbit change maneuvers
ⓘ
orbit circularization ⓘ placing payloads into final orbit ⓘ |
| usedInMissionType |
Earth observation satellite launches
ⓘ
interplanetary missions ⓘ technology demonstration missions ⓘ |
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: PS4 Description of subject: PS4 is the fourth and uppermost stage of India's PSLV launch vehicle, using liquid propellants to perform final orbit insertion and orbital maneuvers.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.