Kaptai Lake
E777313
Kaptai Lake is the largest man-made lake in Bangladesh, formed in the Chittagong Hill Tracts and known for its hydroelectric dam, scenic beauty, and impact on local communities.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Kaptai | 1 |
| Kaptai Lake canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9082918 — 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: Kaptai Lake Context triple: [Khawthlangtuipui (Karnaphuli) River, reservoirCreated, Kaptai Lake]
-
A.
Manas Lake
Manas Lake is a saline endorheic lake in China’s Xinjiang region, situated within the arid Dzungarian Basin.
-
B.
Haflong Lake
Haflong Lake is a scenic natural lake in Assam, India, known as a popular spot for boating, birdwatching, and leisure tourism in the hill town of Haflong.
-
C.
Maota Lake
Maota Lake is a historic artificial lake in Jaipur, India, known for its scenic setting below the Amber Fort and its role as a former water source for the fort complex.
-
D.
Bala Lake
Bala Lake is the largest natural lake in Wales, renowned for its scenic surroundings and popularity for boating, fishing, and watersports.
-
E.
Sumendu Lake
Sumendu Lake is a scenic artificial lake in Mirik, West Bengal, known for its tranquil waters, surrounding pine forests, and popular boating and lakeside promenade.
- 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: Kaptai Lake Target entity description: Kaptai Lake is the largest man-made lake in Bangladesh, formed in the Chittagong Hill Tracts and known for its hydroelectric dam, scenic beauty, and impact on local communities.
-
A.
Manas Lake
Manas Lake is a saline endorheic lake in China’s Xinjiang region, situated within the arid Dzungarian Basin.
-
B.
Haflong Lake
Haflong Lake is a scenic natural lake in Assam, India, known as a popular spot for boating, birdwatching, and leisure tourism in the hill town of Haflong.
-
C.
Maota Lake
Maota Lake is a historic artificial lake in Jaipur, India, known for its scenic setting below the Amber Fort and its role as a former water source for the fort complex.
-
D.
Bala Lake
Bala Lake is the largest natural lake in Wales, renowned for its scenic surroundings and popularity for boating, fishing, and watersports.
-
E.
Sumendu Lake
Sumendu Lake is a scenic artificial lake in Mirik, West Bengal, known for its tranquil waters, surrounding pine forests, and popular boating and lakeside promenade.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
reservoir
ⓘ
tourist attraction ⓘ |
| area |
approximately 170000 acres
ⓘ
approximately 680 square kilometres ⓘ |
| basinCountry | Bangladesh NERFINISHED ⓘ |
| completionDate | 1962 ⓘ |
| constructionStartDate | 1957 ⓘ |
| country |
People's Republic of Bangladesh (from East Pakistan)
ⓘ
surface form:
Bangladesh
|
| createdBy | Kaptai Dam NERFINISHED ⓘ |
| createdByGovernment | Government of Pakistan NERFINISHED ⓘ |
| displacedPopulation |
Chakma people
NERFINISHED
ⓘ
other indigenous communities of Chittagong Hill Tracts ⓘ |
| elevation | about 33 metres above sea level ⓘ |
| environmentalImpact |
changes in local ecosystem
ⓘ
loss of forest land ⓘ |
| formedByRiver | Karnaphuli River NERFINISHED ⓘ |
| hasDam | Kaptai Dam NERFINISHED ⓘ |
| hasInfrastructure | Kaptai Hydroelectric Power Station NERFINISHED ⓘ |
| hasIsland | numerous small islands ⓘ |
| knownFor |
Kaptai Hydroelectric Power Station
NERFINISHED
ⓘ
being the largest man-made lake in Bangladesh ⓘ impact on local communities ⓘ scenic beauty ⓘ |
| languageRegion |
Bengali
NERFINISHED
ⓘ
Chakma NERFINISHED ⓘ |
| length | approximately 68 kilometres ⓘ |
| locatedIn |
Chattogram Division
NERFINISHED
ⓘ
Chittagong Hill Tracts NERFINISHED ⓘ Rangamati District NERFINISHED ⓘ |
| locatedNear |
Kaptai town
NERFINISHED
ⓘ
Rangamati town NERFINISHED ⓘ |
| operator | Bangladesh Power Development Board NERFINISHED ⓘ |
| partOf | Karnaphuli hydroelectric project NERFINISHED ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ irrigation ⓘ |
| region | southeastern Bangladesh ⓘ |
| socialImpact | involuntary resettlement of local communities ⓘ |
| submerged |
historic Rangamati town sites
ⓘ
large areas of agricultural land ⓘ numerous villages ⓘ |
| tourismActivity |
boat tours
ⓘ
resort stays ⓘ sightseeing ⓘ |
| usedFor |
fishing
ⓘ
navigation ⓘ recreation ⓘ tourism ⓘ |
| watercourse | Karnaphuli River NERFINISHED ⓘ |
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: Kaptai Lake Description of subject: Kaptai Lake is the largest man-made lake in Bangladesh, formed in the Chittagong Hill Tracts and known for its hydroelectric dam, scenic beauty, and impact on local communities.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Kaptai