APT-P
E547226
APT-P was the experimental tilting prototype of British Rail’s Advanced Passenger Train, built to test high-speed rail technology in the 1970s–80s.
All labels observed (1)
| Label | Occurrences |
|---|---|
| APT-P canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5560014 — 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: APT-P Context triple: [Advanced Passenger Train, prototypeDesignation, APT-P]
-
A.
APT-E
APT-E was an experimental British tilting high-speed train prototype developed in the 1970s to test advanced technologies for the Advanced Passenger Train program.
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B.
APT
APT is a widely used command-line package management tool for installing, updating, and removing software on Debian-based Linux systems.
-
C.
Apt
Apt is a historic market town in southeastern France’s Vaucluse department, known for its candied fruit production and Provençal charm.
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D.
AAPT
AAPT is a professional organization dedicated to advancing the teaching and learning of physics at all educational levels.
-
E.
ATS-P
ATS-P is an advanced Japanese train protection and automatic train stop system that provides continuous speed supervision and enhances railway safety on lines such as those using the E233 series EMU.
- 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: APT-P Target entity description: APT-P was the experimental tilting prototype of British Rail’s Advanced Passenger Train, built to test high-speed rail technology in the 1970s–80s.
-
A.
APT-E
APT-E was an experimental British tilting high-speed train prototype developed in the 1970s to test advanced technologies for the Advanced Passenger Train program.
-
B.
APT
APT is a widely used command-line package management tool for installing, updating, and removing software on Debian-based Linux systems.
-
C.
Apt
Apt is a historic market town in southeastern France’s Vaucluse department, known for its candied fruit production and Provençal charm.
-
D.
AAPT
AAPT is a professional organization dedicated to advancing the teaching and learning of physics at all educational levels.
-
E.
ATS-P
ATS-P is an advanced Japanese train protection and automatic train stop system that provides continuous speed supervision and enhances railway safety on lines such as those using the E233 series EMU.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
British Rail train
ⓘ
experimental tilting train prototype ⓘ high-speed train prototype ⓘ |
| category |
British experimental rail vehicles
ⓘ
prototype trains ⓘ tilting trains ⓘ |
| country | United Kingdom ⓘ |
| designedFor | high-speed operation on existing conventional tracks ⓘ |
| developedBy | British Rail Research Division NERFINISHED ⓘ |
| era |
1970s
ⓘ
1980s ⓘ |
| influenced | later tilting train designs ⓘ |
| introduced | late 1970s ⓘ |
| nameMeaning | Advanced Passenger Train – Prototype NERFINISHED ⓘ |
| notableFor | pioneering active tilt in British mainline service trials ⓘ |
| operator | British Rail NERFINISHED ⓘ |
| partOf | Advanced Passenger Train programme NERFINISHED ⓘ |
| powerType | electric multiple unit ⓘ |
| purpose |
development of Advanced Passenger Train
ⓘ
test active tilting technology ⓘ test high-speed rail technology ⓘ |
| railwayCompany | British Rail Engineering Limited NERFINISHED ⓘ |
| railwayNetwork | British Rail NERFINISHED ⓘ |
| relatedTo |
APT-E
NERFINISHED
ⓘ
APT-S NERFINISHED ⓘ |
| serviceType | passenger ⓘ |
| status | experimental ⓘ |
| successor | APT-S NERFINISHED ⓘ |
| tiltingSystem | active tilting ⓘ |
| trackGauge | standard gauge ⓘ |
| usedFor | test runs on West Coast Main Line ⓘ |
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: APT-P Description of subject: APT-P was the experimental tilting prototype of British Rail’s Advanced Passenger Train, built to test high-speed rail technology in the 1970s–80s.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.