Mactan Channel
E115453
Mactan Channel is a narrow strait in the central Philippines that separates Mactan Island from Cebu Island and serves as an important maritime passage and harbor area.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mactan Channel canonical | 14 |
How this entity was disambiguated
This entity first appeared as the object of triple T762390 — 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: Mactan Channel Context triple: [Mactan, surroundedBy, Mactan Channel]
-
A.
Luzon Strait
The Luzon Strait is a strategically important body of water between Taiwan and the Philippines that connects the South China Sea with the Philippine Sea in the western Pacific Ocean.
-
B.
Manila Bay
Manila Bay is a natural harbor on the western coast of Luzon in the Philippines, historically significant as a strategic maritime gateway and site of major naval battles.
-
C.
Lombok Strait
Lombok Strait is a deep, narrow waterway between the Indonesian islands of Bali and Lombok that serves as a major international shipping route and alternative passage to the nearby Strait of Malacca.
-
D.
Bali Strait
The Bali Strait is a narrow body of water separating the Indonesian islands of Java and Bali, serving as an important local shipping and ferry route.
-
E.
Mona Passage
The Mona Passage is a strait in the Caribbean Sea that separates the islands of Hispaniola and Puerto Rico, serving as a key shipping route and a challenging stretch of water for navigation.
- 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: Mactan Channel Target entity description: Mactan Channel is a narrow strait in the central Philippines that separates Mactan Island from Cebu Island and serves as an important maritime passage and harbor area.
-
A.
Luzon Strait
The Luzon Strait is a strategically important body of water between Taiwan and the Philippines that connects the South China Sea with the Philippine Sea in the western Pacific Ocean.
-
B.
Manila Bay
Manila Bay is a natural harbor on the western coast of Luzon in the Philippines, historically significant as a strategic maritime gateway and site of major naval battles.
-
C.
Lombok Strait
Lombok Strait is a deep, narrow waterway between the Indonesian islands of Bali and Lombok that serves as a major international shipping route and alternative passage to the nearby Strait of Malacca.
-
D.
Bali Strait
The Bali Strait is a narrow body of water separating the Indonesian islands of Java and Bali, serving as an important local shipping and ferry route.
-
E.
Mona Passage
The Mona Passage is a strait in the Caribbean Sea that separates the islands of Hispaniola and Puerto Rico, serving as a key shipping route and a challenging stretch of water for navigation.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
body of water
ⓘ
narrow strait ⓘ strait ⓘ |
| adjacentTo |
Cebu
ⓘ
surface form:
Cebu City
Cordova, Cebu ⓘ Lapu-Lapu City ⓘ Mandaue City ⓘ |
| borders |
Cebu Island
ⓘ
Mactan ⓘ
surface form:
Mactan Island
Metro Cebu ⓘ |
| connectsTo |
Cebu Strait
ⓘ
surface form:
Bohol Strait
Camotes Sea ⓘ |
| country | Philippines ⓘ |
| crossedBy |
Cebu–Cordova Link Expressway
ⓘ
Mactan–Mandaue Bridge ⓘ Marcelo Fernan Bridge ⓘ |
| governedBy |
local government units of Cebu City
ⓘ
local government units of Cordova, Cebu ⓘ local government units of Lapu-Lapu City ⓘ local government units of Mandaue City ⓘ |
| hasEconomicRole |
supports inter-island trade
ⓘ
supports international shipping to Cebu ⓘ |
| hasIssue |
marine pollution
ⓘ
solid waste accumulation ⓘ water quality degradation ⓘ |
| hasNavigationRole |
access route to Cebu domestic port
ⓘ
access route to Cebu international port ⓘ |
| hasPort |
Port of Cebu
ⓘ
surface form:
Cebu International Port
Mactan wharves ⓘ Port of Cebu ⓘ |
| importance | major maritime passage for Cebu metropolitan area ⓘ |
| locatedIn |
Central Visayas
ⓘ
central Philippines ⓘ |
| locatedInBody |
Visayas
ⓘ
surface form:
Visayan Sea region
|
| near | Mactan–Cebu International Airport ⓘ |
| partOf |
Port of Cebu
ⓘ
surface form:
Cebu City harbor area
Cebu Strait ⓘ |
| separates |
Cebu Island
ⓘ
Mactan ⓘ
surface form:
Mactan Island
|
| usedFor |
ferry transport
ⓘ
harbor operations ⓘ maritime navigation ⓘ shipping ⓘ |
| waterwayType | coastal channel ⓘ |
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: Mactan Channel Description of subject: Mactan Channel is a narrow strait in the central Philippines that separates Mactan Island from Cebu Island and serves as an important maritime passage and harbor area.
Referenced by (14)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Cordova, Cebu