Martin N-20
E257696
The Martin N-20 is a high-end nylon-string acoustic guitar by C.F. Martin & Co., best known for being played by Willie Nelson as his iconic instrument "Trigger."
All labels observed (1)
| Label | Occurrences |
|---|---|
| Martin N-20 canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T2354408 — 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: Martin N-20 Context triple: [Trigger (guitar), model, Martin N-20]
-
A.
Nicostratus
Nicostratus is a lesser-known figure in Greek mythology traditionally regarded as one of the sons of Helen of Troy.
-
B.
Nimrod MR2
The Nimrod MR2 is a retired British maritime patrol and anti-submarine warfare aircraft developed from the de Havilland Comet airliner and operated primarily by the Royal Air Force during the Cold War and beyond.
-
C.
Heinkel He 60
The Heinkel He 60 was a German biplane reconnaissance seaplane used primarily by the Kriegsmarine in the 1930s.
-
D.
Bücker Bü 131
The Bücker Bü 131 is a German 1930s two-seat biplane trainer aircraft widely used for pilot instruction before and during World War II.
-
E.
M-346 trainer aircraft
The M-346 is an advanced jet trainer and light attack aircraft designed for lead-in fighter training and tactical roles, widely used by several air forces worldwide.
- 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: Martin N-20 Target entity description: The Martin N-20 is a high-end nylon-string acoustic guitar by C.F. Martin & Co., best known for being played by Willie Nelson as his iconic instrument "Trigger."
-
A.
Nicostratus
Nicostratus is a lesser-known figure in Greek mythology traditionally regarded as one of the sons of Helen of Troy.
-
B.
Nimrod MR2
The Nimrod MR2 is a retired British maritime patrol and anti-submarine warfare aircraft developed from the de Havilland Comet airliner and operated primarily by the Royal Air Force during the Cold War and beyond.
-
C.
Heinkel He 60
The Heinkel He 60 was a German biplane reconnaissance seaplane used primarily by the Kriegsmarine in the 1930s.
-
D.
Bücker Bü 131
The Bücker Bü 131 is a German 1930s two-seat biplane trainer aircraft widely used for pilot instruction before and during World War II.
-
E.
M-346 trainer aircraft
The M-346 is an advanced jet trainer and light attack aircraft designed for lead-in fighter training and tactical roles, widely used by several air forces worldwide.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
acoustic guitar model
ⓘ
individual guitar ⓘ nylon-string guitar ⓘ |
| associatedInstrumentName | Trigger ⓘ |
| bodyConstruction | acoustic, non-electric body ⓘ |
| brand | Martin ⓘ |
| category |
guitar model
ⓘ
musical instrument ⓘ string instrument ⓘ |
| construction | flat-top acoustic guitar ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| designedFor | classical and folk music ⓘ |
| fameReason | used by Willie Nelson as his primary guitar ⓘ |
| guitarType | classical-style acoustic guitar ⓘ |
| hasFamousExample | Willie Nelson's guitar Trigger ⓘ |
| manufacturer |
C. F. Martin & Company
ⓘ
surface form:
C. F. Martin & Co.
C. F. Martin & Company ⓘ
surface form:
C. F. Martin & Co.
|
| marketPosition | high-end guitar model ⓘ |
| model | Martin N-20 self-linksurface differs ⓘ |
| neckJoint | traditional glued neck joint ⓘ |
| notableOwner | Willie Nelson ⓘ |
| notablePlayer | Willie Nelson ⓘ |
| scaleLength | classical-guitar scale length ⓘ |
| soundCharacteristic |
mellow sound
ⓘ
warm tone ⓘ |
| stringCount | 6 ⓘ |
| stringType | nylon strings ⓘ |
| usage |
live performance
ⓘ
studio recording ⓘ |
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: Martin N-20 Description of subject: The Martin N-20 is a high-end nylon-string acoustic guitar by C.F. Martin & Co., best known for being played by Willie Nelson as his iconic instrument "Trigger."
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Trigger (guitar)
subject surface form:
Trigger
subject surface form:
Trigger (Willie Nelson's guitar)