CQD
E314299
CQD was an early maritime distress signal used in wireless telegraphy before the widespread adoption of SOS.
All labels observed (2)
| Label | Occurrences |
|---|---|
| CQD canonical | 2 |
| CQD distress calls | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2970338 — 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: CQD Context triple: [RMS Titanic, distressSignalUsed, CQD]
-
A.
CDQ
CDQ is a Nigerian rapper known for his energetic Yoruba-language street hip-hop and collaborations with major Afrobeats artists.
-
B.
CDQ
CDQ is the National Rail station code for Cardiff Queen Street railway station, a major commuter hub in Cardiff, Wales.
-
C.
CHQ
CHQ is the ICAO airline designator assigned to Chautauqua Airlines, a former U.S. regional carrier that operated feeder services for major airlines.
-
D.
QF
QF is the IATA airline designator used for Qantas, the flag carrier of Australia.
-
E.
The QC
The QC is a popular nickname for Charlotte, North Carolina, reflecting its identity as a major financial and cultural hub in the southeastern United States.
- 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: CQD Target entity description: CQD was an early maritime distress signal used in wireless telegraphy before the widespread adoption of SOS.
-
A.
CDQ
CDQ is a Nigerian rapper known for his energetic Yoruba-language street hip-hop and collaborations with major Afrobeats artists.
-
B.
CDQ
CDQ is the National Rail station code for Cardiff Queen Street railway station, a major commuter hub in Cardiff, Wales.
-
C.
CHQ
CHQ is the ICAO airline designator assigned to Chautauqua Airlines, a former U.S. regional carrier that operated feeder services for major airlines.
-
D.
QF
QF is the IATA airline designator used for Qantas, the flag carrier of Australia.
-
E.
The QC
The QC is a popular nickname for Charlotte, North Carolina, reflecting its identity as a major financial and cultural hub in the southeastern United States.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
maritime distress signal
ⓘ
wireless telegraphy signal ⓘ |
| associatedWith | early 20th century maritime radio ⓘ |
| category |
emergency signal
ⓘ
radio signal ⓘ |
| communicationMode | Morse code ⓘ |
| developedFor | wireless telegraphy equipment ⓘ |
| fieldOfUse |
emergency communication
ⓘ
maritime safety ⓘ |
| followedBy | SOS ⓘ |
| hasPurpose |
indicate distress
ⓘ
request immediate assistance ⓘ |
| historicalRole | precursor to standardized SOS distress signal ⓘ |
| introducedBy | Marconi Company ⓘ |
| introducedFor | distress signaling at sea ⓘ |
| medium | radio waves ⓘ |
| notationType | alphabetic code group ⓘ |
| precededBy | no standardized international distress signal ⓘ |
| relatedTo |
Morse code emergency procedures
ⓘ
SOS distress signal ⓘ |
| replacedBy | SOS ⓘ |
| replacedInDomain | international maritime distress signaling ⓘ |
| status | obsolete ⓘ |
| usedBefore | widespread adoption of SOS ⓘ |
| usedBy |
maritime wireless stations
ⓘ
ship radio operators ⓘ |
| usedIn |
maritime communication
ⓘ
wireless telegraphy ⓘ |
| usedOn |
cargo ships
ⓘ
ocean‑going vessels ⓘ passenger ships ⓘ |
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: CQD Description of subject: CQD was an early maritime distress signal used in wireless telegraphy before the widespread adoption of SOS.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: CQD