Merrickville Locks
E164150
Merrickville Locks are a historic set of canal locks in Merrickville, Ontario, that form part of the UNESCO-listed Rideau Canal waterway.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Merrickville lockstation | 3 |
| Locks 46–49 on the Rideau Canal | 1 |
| Merrickville Locks canonical | 1 |
| Merrickville locks | 1 |
| Merrickville locks on the Rideau Canal | 1 |
| Merrickville lockstation complex | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1375133 — 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: Merrickville Locks Context triple: [Rideau Canal, hasLock, Merrickville Locks]
-
A.
Kingston Mills Locks
Kingston Mills Locks is a historic lockstation at the southern entrance of Canada’s Rideau Canal, known for its 19th-century engineering works and scenic setting near Kingston, Ontario.
-
B.
Jones Falls Locks
Jones Falls Locks is a historic flight of canal locks on the Rideau Canal in Ontario, Canada, known for its impressive 19th-century engineering and scenic setting.
-
C.
Macomb’s Dam
Macomb’s Dam was a historic Harlem River crossing in New York City that preceded and was ultimately superseded by the Macombs Dam Bridge.
-
D.
New Haw Lock
New Haw Lock is a navigation lock on the River Wey in Surrey, England, used to manage water levels and enable boat passage along the waterway.
-
E.
Pickwick Landing Dam
Pickwick Landing Dam is a Tennessee Valley Authority hydroelectric and navigation dam on the Tennessee River in southwestern Tennessee.
- 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: Merrickville Locks Target entity description: Merrickville Locks are a historic set of canal locks in Merrickville, Ontario, that form part of the UNESCO-listed Rideau Canal waterway.
-
A.
Kingston Mills Locks
Kingston Mills Locks is a historic lockstation at the southern entrance of Canada’s Rideau Canal, known for its 19th-century engineering works and scenic setting near Kingston, Ontario.
-
B.
Jones Falls Locks
Jones Falls Locks is a historic flight of canal locks on the Rideau Canal in Ontario, Canada, known for its impressive 19th-century engineering and scenic setting.
-
C.
Macomb’s Dam
Macomb’s Dam was a historic Harlem River crossing in New York City that preceded and was ultimately superseded by the Macombs Dam Bridge.
-
D.
New Haw Lock
New Haw Lock is a navigation lock on the River Wey in Surrey, England, used to manage water levels and enable boat passage along the waterway.
-
E.
Pickwick Landing Dam
Pickwick Landing Dam is a Tennessee Valley Authority hydroelectric and navigation dam on the Tennessee River in southwestern Tennessee.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
Rideau Canal lockstation
ⓘ
canal lock station ⓘ historic site ⓘ |
| connectsWaterBody | Rideau River ⓘ |
| constructionMaterial | stone ⓘ |
| country | Canada ⓘ |
| hasAdjacentStructure |
Merrickville Blockhouse
ⓘ
canal basin ⓘ swing bridge ⓘ |
| hasLockNumber |
Lock 21
ⓘ
Lock 22 ⓘ Lock 23 ⓘ Lock 24 ⓘ |
| hasNearbyAmenity |
interpretive signage
ⓘ
picnic area ⓘ public washrooms ⓘ visitor parking ⓘ |
| hasStructure |
dam
ⓘ
lock chamber ⓘ lock gates ⓘ weir ⓘ |
| heritageDesignation |
National Historic Site of Canada component
ⓘ
linked to:
National Historic Site of Canada
UNESCO World Heritage Site component ⓘ |
| locatedIn |
Merrickville–Wolford, Ontario
ⓘ
Ontario ⓘ |
| locatedInProtectedArea |
Rideau Canal National Historic Site
ⓘ
linked to:
Rideau Canal
|
| locatedInTimeZone | Eastern Time Zone ⓘ |
| locatedNear | Merrickville village core ⓘ |
| locatedOnWaterway | Rideau Canal ⓘ |
| managedBy | Parks Canada ⓘ |
| openSeason | navigation season (spring to fall) ⓘ |
| operatedBy | lock staff ⓘ |
| operationType | manual lock operation ⓘ |
| partOf |
Rideau Canal
ⓘ
Rideau Canal lock system ⓘ
linked to:
Rideau Canal
UNESCO World Heritage Site Rideau Canal ⓘ
linked to:
Rideau Canal
|
| significance |
contributes to Rideau Canal World Heritage value
ⓘ
linked to:
Rideau Canal
example of 19th-century canal engineering ⓘ |
| tourismAttraction |
boating tourism
ⓘ
heritage tourism ⓘ |
| usedFor |
navigation
ⓘ
recreational boating ⓘ water level control ⓘ |
| watercourse | Rideau River ⓘ |
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: Merrickville Locks Description of subject: Merrickville Locks are a historic set of canal locks in Merrickville, Ontario, that form part of the UNESCO-listed Rideau Canal waterway.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Merrickville Locks
linked to: Merrickville Locks
linked to: Merrickville Locks
linked to: Merrickville Locks
linked to: Merrickville Locks