Y class
E346417
Y class is the standard economy fare class used by airlines, typically representing full-fare economy tickets with the least restrictions on changes and refunds.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Y class canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3300548 — 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: Y class Context triple: [Economy Class, alsoKnownAs, Y class]
-
A.
Klas
Klas is a Scandinavian given name, commonly used as a variant of Nicholas.
-
B.
Bagley class
The Bagley class was a group of U.S. Navy destroyers built in the late 1930s that saw extensive service during World War II, particularly in the Pacific Theater.
-
C.
BB-34 class
The BB-34 class, better known as the New York-class, was a pair of early 20th-century U.S. Navy dreadnought battleships that served through both World Wars.
-
D.
YV
YV is the IATA airline designator used to identify Mesa Airlines in flight schedules and ticketing systems.
-
E.
Crown Class
Crown Class is Royal Jordanian's premium business-class cabin product, offering enhanced comfort, service, and amenities on the airline’s flights.
- 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: Y class Target entity description: Y class is the standard economy fare class used by airlines, typically representing full-fare economy tickets with the least restrictions on changes and refunds.
-
A.
Klas
Klas is a Scandinavian given name, commonly used as a variant of Nicholas.
-
B.
Bagley class
The Bagley class was a group of U.S. Navy destroyers built in the late 1930s that saw extensive service during World War II, particularly in the Pacific Theater.
-
C.
BB-34 class
The BB-34 class, better known as the New York-class, was a pair of early 20th-century U.S. Navy dreadnought battleships that served through both World Wars.
-
D.
YV
YV is the IATA airline designator used to identify Mesa Airlines in flight schedules and ticketing systems.
-
E.
Crown Class
Crown Class is Royal Jordanian's premium business-class cabin product, offering enhanced comfort, service, and amenities on the airline’s flights.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
airline booking class
ⓘ
economy fare class ⓘ |
| appliesTo | both domestic and international flights ⓘ |
| bookingCodeLetter | Y ⓘ |
| canBeRebookedTo | other economy fare classes subject to airline rules ⓘ |
| codedUsing | single-letter booking code ⓘ |
| commonlyMappedTo | economy class in airline reservation systems ⓘ |
| contrastedWith |
discounted economy fare classes
ⓘ
restricted economy fare classes ⓘ |
| eligibleFor | most frequent flyer earning rates in economy on many programs ⓘ |
| existsWithin | IATA fare and booking code conventions ⓘ |
| fareBasis | can be combined with additional letters and numbers ⓘ |
| fareRules | defined by each individual airline ⓘ |
| hasCabin | economy cabin ⓘ |
| hasCharacteristic |
fully flexible economy fare
ⓘ
least restrictions on changes ⓘ least restrictions on refunds ⓘ often eligible for complimentary upgrades priority in economy ⓘ often eligible for highest mileage accrual in economy ⓘ standard economy fare ⓘ usually changeable without high penalties ⓘ usually refundable ⓘ |
| hasPriorityLevel | highest booking class within economy cabin on many airlines ⓘ |
| hasSeatType | standard economy seat ⓘ |
| mayInclude |
higher baggage allowance than discounted economy on some airlines
ⓘ
more flexible same-day change options on some airlines ⓘ |
| notIndicativeOf | premium economy cabin by default ⓘ |
| oftenRequiredFor | certain corporate or government flexible travel policies ⓘ |
| partOf |
airline fare class system
ⓘ
airline revenue management system ⓘ |
| recognizedBy |
global distribution systems
ⓘ
online travel agencies ⓘ travel agencies ⓘ |
| represents | full-fare economy ticket ⓘ |
| standardizedAspect | booking code letter Y across many carriers ⓘ |
| typicallyAssociatedWith |
highest-priced economy fares
ⓘ
least restrictive economy fares ⓘ |
| usedBy | airlines ⓘ |
| usedFor |
frequent flyer mileage calculation
ⓘ
interline ticketing between airlines ⓘ inventory management in economy cabin ⓘ upgrade eligibility determination ⓘ yield management in economy cabin ⓘ |
| variesBy |
airline
ⓘ
route ⓘ tariff filing ⓘ |
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: Y class Description of subject: Y class is the standard economy fare class used by airlines, typically representing full-fare economy tickets with the least restrictions on changes and refunds.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.