Gatun Locks
E220175
Gatun Locks is a major lock complex on the Panama Canal that raises and lowers ships between sea level and Gatun Lake as they transit the waterway.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Gatun Locks canonical | 2 |
| Panama Canal locks system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1890683 — 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: Gatun Locks Context triple: [Gatun Lake, lockSystemSupplied, Gatun Locks]
-
A.
Gatun Dam
Gatun Dam is a large earth-fill dam in Panama that created Gatun Lake and plays a crucial role in the operation of the Panama Canal.
-
B.
Miraflores Locks
Miraflores Locks is a key two-step lock complex near the Pacific entrance of the Panama Canal that raises and lowers ships between sea level and the canal’s main elevation.
-
C.
Panama Canal
The Panama Canal is a man-made waterway in Panama that dramatically shortens maritime travel by allowing ships to pass between the Atlantic and Pacific Oceans through Central America.
-
D.
Gatun Lake
Gatun Lake is a large artificial freshwater lake in central Panama that forms a major part of the Panama Canal’s shipping route across the Isthmus of Panama.
-
E.
Bobcaygeon Lock
Bobcaygeon Lock is a historic canal lock in Bobcaygeon, Ontario, that facilitates boat navigation and water level control along Canada’s Trent–Severn Waterway.
- 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: Gatun Locks Target entity description: Gatun Locks is a major lock complex on the Panama Canal that raises and lowers ships between sea level and Gatun Lake as they transit the waterway.
-
A.
Gatun Dam
Gatun Dam is a large earth-fill dam in Panama that created Gatun Lake and plays a crucial role in the operation of the Panama Canal.
-
B.
Miraflores Locks
Miraflores Locks is a key two-step lock complex near the Pacific entrance of the Panama Canal that raises and lowers ships between sea level and the canal’s main elevation.
-
C.
Panama Canal
The Panama Canal is a man-made waterway in Panama that dramatically shortens maritime travel by allowing ships to pass between the Atlantic and Pacific Oceans through Central America.
-
D.
Gatun Lake
Gatun Lake is a large artificial freshwater lake in central Panama that forms a major part of the Panama Canal’s shipping route across the Isthmus of Panama.
-
E.
Bobcaygeon Lock
Bobcaygeon Lock is a historic canal lock in Bobcaygeon, Ontario, that facilitates boat navigation and water level control along Canada’s Trent–Severn Waterway.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Panama Canal lock
ⓘ
lock complex ⓘ |
| adjacentTo |
Gatun Lake
ⓘ
surface form:
Gatun Lake navigation channel
|
| connectsTo |
Atlantic Ocean
ⓘ
Caribbean Sea ⓘ Gatun Lake ⓘ |
| constructionEra | early 20th century ⓘ |
| constructionMaterial |
reinforced concrete
ⓘ
steel gates ⓘ |
| constructionStartDate | 1909 ⓘ |
| country | Panama ⓘ |
| designedFor | Panamax-size vessels ⓘ |
| elevationChange |
approximately 26 meters
ⓘ
approximately 85 feet ⓘ |
| engineeringSignificance | one of the largest lock systems in the world at time of completion ⓘ |
| formerlyOperatedBy | United States government ⓘ |
| hasFeature |
concrete lock chambers
ⓘ
control house ⓘ miter gates ⓘ spillway ⓘ towing locomotives ⓘ |
| hasTraffic |
bulk carriers
ⓘ
container ships ⓘ ocean-going ships ⓘ tankers ⓘ |
| isSectionOf |
Panama Canal
ⓘ
surface form:
Panama Canal Atlantic side locks
|
| locatedIn |
Colón Province
ⓘ
Panama ⓘ |
| locatedNear |
Colón
ⓘ
Gatun Lake ⓘ
surface form:
Gatun
|
| lockType | gravity-fed lock ⓘ |
| namedAfter | Gatun Lake ⓘ |
| nearbyStructure | Gatun Dam ⓘ |
| numberOfChambers | 3 ⓘ |
| openingDate | 1914 ⓘ |
| operator | Panama Canal Authority ⓘ |
| partOf |
Panama Canal
ⓘ
surface form:
Atlantic entrance of the Panama Canal
Panama Canal ⓘ original Panama Canal lock system ⓘ |
| primaryFunction | enabling transit between Atlantic Ocean and Gatun Lake ⓘ |
| region | Isthmus of Panama ⓘ |
| strategicImportance | major transit point for global maritime trade ⓘ |
| uses | freshwater from Gatun Lake for lockages ⓘ |
| waterSource | Gatun Lake ⓘ |
| waterwayFunction |
lowers ships from Gatun Lake to sea level
ⓘ
raises ships from sea level to Gatun Lake ⓘ |
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: Gatun Locks Description of subject: Gatun Locks is a major lock complex on the Panama Canal that raises and lowers ships between sea level and Gatun Lake as they transit the waterway.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Panama Canal locks system