Douglas DB-1
E694571
The Douglas DB-1 was an early American twin-engine bomber prototype developed in the 1930s as a competitor in U.S. Army Air Corps bomber trials.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Douglas DB-1 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7810064 — 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: Douglas DB-1 Context triple: [Boeing Model 299, competedAgainst, Douglas DB-1]
-
A.
Boeing Stearman
The Boeing Stearman is a classic American biplane trainer aircraft widely used during the 1930s and World War II to train military pilots.
-
B.
Douglas B-18 Bolo
The Douglas B-18 Bolo was an American twin‑engine medium bomber of the late 1930s and early World War II, used primarily for patrol, training, and anti-submarine duties before being superseded by more advanced aircraft.
-
C.
Boeing P-26 Peashooter
The Boeing P-26 "Peashooter" was a 1930s American monoplane fighter aircraft and the first all-metal pursuit plane to enter service with the U.S. Army Air Corps.
-
D.
Douglas DB-7
The Douglas DB-7 was an American World War II-era light bomber and attack aircraft that served with multiple Allied air forces and formed the basis for the later Douglas Boston series.
-
E.
Curtiss P-36 Hawk
The Curtiss P-36 Hawk was an American single-seat, all-metal monoplane fighter aircraft of the late 1930s that served with the U.S. Army Air Corps and numerous foreign air forces before and during the early stages of World War II.
- 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: Douglas DB-1 Target entity description: The Douglas DB-1 was an early American twin-engine bomber prototype developed in the 1930s as a competitor in U.S. Army Air Corps bomber trials.
-
A.
Boeing Stearman
The Boeing Stearman is a classic American biplane trainer aircraft widely used during the 1930s and World War II to train military pilots.
-
B.
Douglas B-18 Bolo
The Douglas B-18 Bolo was an American twin‑engine medium bomber of the late 1930s and early World War II, used primarily for patrol, training, and anti-submarine duties before being superseded by more advanced aircraft.
-
C.
Boeing P-26 Peashooter
The Boeing P-26 "Peashooter" was a 1930s American monoplane fighter aircraft and the first all-metal pursuit plane to enter service with the U.S. Army Air Corps.
-
D.
Douglas DB-7
The Douglas DB-7 was an American World War II-era light bomber and attack aircraft that served with multiple Allied air forces and formed the basis for the later Douglas Boston series.
-
E.
Curtiss P-36 Hawk
The Curtiss P-36 Hawk was an American single-seat, all-metal monoplane fighter aircraft of the late 1930s that served with the U.S. Army Air Corps and numerous foreign air forces before and during the early stages of World War II.
- F. None of above. chosen
Statements (20)
| Predicate | Object |
|---|---|
| instanceOf |
bomber prototype
ⓘ
military aircraft ⓘ twin‑engine aircraft ⓘ |
| aircraftType | landplane ⓘ |
| category |
American bomber aircraft
ⓘ
prototype military aircraft ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| crew | multi‑crew ⓘ |
| designedFor | bombing missions ⓘ |
| developedAs | competitor in U.S. Army Air Corps bomber competition ⓘ |
| developedInDecade | 1930s ⓘ |
| engineConfiguration | twin‑engine ⓘ |
| era | 1930s ⓘ |
| manufacturer | Douglas Aircraft Company NERFINISHED ⓘ |
| numberBuilt | prototype series (limited production) ⓘ |
| operator | United States Army Air Corps NERFINISHED ⓘ |
| propulsionType | piston‑engine ⓘ |
| role | bomber ⓘ |
| status | prototype ⓘ |
| usedFor | U.S. Army Air Corps bomber trials ⓘ |
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: Douglas DB-1 Description of subject: The Douglas DB-1 was an early American twin-engine bomber prototype developed in the 1930s as a competitor in U.S. Army Air Corps bomber trials.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.