Colombo–Katunayake Expressway
E569180
The Colombo–Katunayake Expressway is a major controlled-access highway in Sri Lanka that connects the capital city Colombo with Bandaranaike International Airport and the city of Negombo, significantly reducing travel time between them.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Colombo–Katunayake Expressway canonical | 2 |
| Colombo–Katunayake transport corridor | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6104108 — 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: Colombo–Katunayake Expressway Context triple: [Western Province, Sri Lanka, hasMajorHighway, Colombo–Katunayake Expressway]
-
A.
Southern Expressway of Sri Lanka
The Southern Expressway of Sri Lanka is a major controlled-access highway linking Colombo with key southern cities, significantly reducing travel time and boosting regional economic development.
-
B.
Colombo–Galle–Hambantota–Wellawaya Highway (A2)
The Colombo–Galle–Hambantota–Wellawaya Highway (A2) is a major coastal trunk road in Sri Lanka that connects Colombo with key southern and southeastern cities including Galle, Hambantota, and Wellawaya.
-
C.
Colombo–Batticaloa route
The Colombo–Batticaloa route is a major intercity railway line in Sri Lanka that connects the capital Colombo with the eastern city of Batticaloa, traversing diverse regions across the island.
-
D.
Colombo–Trincomalee route
The Colombo–Trincomalee route is a major intercity railway line in Sri Lanka connecting the capital Colombo with the eastern port city of Trincomalee.
-
E.
Puttalam Line
The Puttalam Line is a major railway line in Sri Lanka that runs along the island’s western coast, serving towns and industrial areas between Colombo and Puttalam.
- 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: Colombo–Katunayake Expressway Target entity description: The Colombo–Katunayake Expressway is a major controlled-access highway in Sri Lanka that connects the capital city Colombo with Bandaranaike International Airport and the city of Negombo, significantly reducing travel time between them.
-
A.
Southern Expressway of Sri Lanka
The Southern Expressway of Sri Lanka is a major controlled-access highway linking Colombo with key southern cities, significantly reducing travel time and boosting regional economic development.
-
B.
Colombo–Galle–Hambantota–Wellawaya Highway (A2)
The Colombo–Galle–Hambantota–Wellawaya Highway (A2) is a major coastal trunk road in Sri Lanka that connects Colombo with key southern and southeastern cities including Galle, Hambantota, and Wellawaya.
-
C.
Colombo–Batticaloa route
The Colombo–Batticaloa route is a major intercity railway line in Sri Lanka that connects the capital Colombo with the eastern city of Batticaloa, traversing diverse regions across the island.
-
D.
Colombo–Trincomalee route
The Colombo–Trincomalee route is a major intercity railway line in Sri Lanka connecting the capital Colombo with the eastern port city of Trincomalee.
-
E.
Puttalam Line
The Puttalam Line is a major railway line in Sri Lanka that runs along the island’s western coast, serving towns and industrial areas between Colombo and Puttalam.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
controlled-access highway
ⓘ
expressway ⓘ |
| alsoKnownAs |
CKE
NERFINISHED
ⓘ
E03 NERFINISHED ⓘ |
| builtBy | China Metallurgical Group Corporation NERFINISHED ⓘ |
| category | Expressways in Sri Lanka ⓘ |
| connects |
Bandaranaike International Airport
NERFINISHED
ⓘ
Colombo NERFINISHED ⓘ Negombo NERFINISHED ⓘ |
| constructionStarted | 2009 ⓘ |
| country | Sri Lanka ⓘ |
| directionA | south ⓘ |
| directionB | north ⓘ |
| endPoint | Katunayake NERFINISHED ⓘ |
| fundedBy | Export-Import Bank of China NERFINISHED ⓘ |
| hasBridge | bridge over Kelani River ⓘ |
| hasInterchange |
Ja-Ela interchange
NERFINISHED
ⓘ
Katunayake interchange NERFINISHED ⓘ Peliyagoda interchange NERFINISHED ⓘ |
| hasJunctionWith |
A003 road
NERFINISHED
ⓘ
E02 expressway NERFINISHED ⓘ |
| hasServiceArea | Ja-Ela service area NERFINISHED ⓘ |
| hasTollPlaza |
Ja-Ela toll plaza
NERFINISHED
ⓘ
Katunayake toll plaza NERFINISHED ⓘ Peliyagoda toll plaza NERFINISHED ⓘ |
| inauguratedBy | Mahinda Rajapaksa NERFINISHED ⓘ |
| lanes | 4 ⓘ |
| length | approximately 25.8 km ⓘ |
| locatedIn |
Colombo District
NERFINISHED
ⓘ
Gampaha District NERFINISHED ⓘ |
| maintainedBy | Road Development Authority of Sri Lanka NERFINISHED ⓘ |
| opened | 2013-10-27 ⓘ |
| openedToTraffic | 2013 ⓘ |
| partOf | Sri Lanka expressway network NERFINISHED ⓘ |
| passesNear |
Ja-Ela
NERFINISHED
ⓘ
Peliyagoda NERFINISHED ⓘ Seeduwa NERFINISHED ⓘ |
| purpose |
improve connectivity to Negombo
NERFINISHED
ⓘ
reduce travel time between Colombo and Bandaranaike International Airport ⓘ |
| region | Western Province NERFINISHED ⓘ |
| roadNumber | E03 ⓘ |
| speedLimit | 100 km/h ⓘ |
| startPoint | New Kelani Bridge, Colombo NERFINISHED ⓘ |
| terminusA | Colombo NERFINISHED ⓘ |
| terminusB | Katunayake NERFINISHED ⓘ |
| tollRoad | yes ⓘ |
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: Colombo–Katunayake Expressway Description of subject: The Colombo–Katunayake Expressway is a major controlled-access highway in Sri Lanka that connects the capital city Colombo with Bandaranaike International Airport and the city of Negombo, significantly reducing travel time between them.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Colombo–Katunayake transport corridor