Madras Port
E31422
Madras Port, now known as Chennai Port, is one of India’s oldest and busiest seaports, serving as a key maritime gateway on the southeastern coast of the country.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Madras Port canonical | 2 |
| Chennai Port | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T236871 — 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: Madras Port Context triple: [Madras Presidency, majorPort, Madras Port]
-
A.
Port Blair
Port Blair is a coastal city in the Bay of Bengal known as the main gateway and administrative hub of India’s Andaman and Nicobar Islands, with a history tied to colonial-era penal settlements.
-
B.
Table Bay
Table Bay is a natural bay on the Atlantic coast of South Africa, famed as the historic anchorage and harbor area of Cape Town beneath Table Mountain.
-
C.
Batticaloa
Batticaloa is a coastal city in eastern Sri Lanka known historically as an important regional port and trading center.
-
D.
Fort William, Kolkata
Fort William, Kolkata is a historic 18th-century fort on the eastern bank of the Hooghly River that now serves as the headquarters of the Eastern Command of the Indian Army.
-
E.
Madras Presidency
Madras Presidency was a major administrative subdivision of British India, encompassing much of southern India and serving as an important center of colonial governance and trade.
- 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: Madras Port Target entity description: Madras Port, now known as Chennai Port, is one of India’s oldest and busiest seaports, serving as a key maritime gateway on the southeastern coast of the country.
-
A.
Port Blair
Port Blair is a coastal city in the Bay of Bengal known as the main gateway and administrative hub of India’s Andaman and Nicobar Islands, with a history tied to colonial-era penal settlements.
-
B.
Table Bay
Table Bay is a natural bay on the Atlantic coast of South Africa, famed as the historic anchorage and harbor area of Cape Town beneath Table Mountain.
-
C.
Batticaloa
Batticaloa is a coastal city in eastern Sri Lanka known historically as an important regional port and trading center.
-
D.
Fort William, Kolkata
Fort William, Kolkata is a historic 18th-century fort on the eastern bank of the Hooghly River that now serves as the headquarters of the Eastern Command of the Indian Army.
-
E.
Madras Presidency
Madras Presidency was a major administrative subdivision of British India, encompassing much of southern India and serving as an important center of colonial governance and trade.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
artificial harbour
ⓘ
seaport ⓘ |
| alsoKnownAs |
Kamarajar Port
ⓘ
surface form:
Chennai Port
|
| coastGuardPresence | Indian Coast Guard ⓘ |
| connectsTo |
East Asia
ⓘ
Southeast Asia ⓘ Sri Lanka ⓘ international shipping routes in the Bay of Bengal ⓘ |
| country | India ⓘ |
| economicRole |
supports trade and industry in South India
ⓘ
supports trade and industry in Tamil Nadu ⓘ |
| formerNameOf |
Kamarajar Port
ⓘ
surface form:
Chennai Port
|
| governingBody | Chennai Port Authority ⓘ |
| handlesCargoType |
break-bulk cargo
ⓘ
containers ⓘ dry bulk ⓘ liquid bulk ⓘ |
| hasCustomsOffice | Indian Customs ⓘ |
| hasFacility |
berths
ⓘ
container terminal ⓘ railway sidings ⓘ road connectivity to hinterland ⓘ warehouses ⓘ |
| isOneOf |
busiest seaports in India
ⓘ
oldest major ports in India ⓘ |
| languageUsed |
English
ⓘ
Tamil ⓘ |
| linkedTo |
Chennai
ⓘ
surface form:
Chennai metropolitan region
|
| locatedIn |
Chennai
ⓘ
Tamil Nadu ⓘ |
| locatedOnCoastOf | Bay of Bengal ⓘ |
| locatedOnWaterbody | Coromandel Coast ⓘ |
| navalProximity | near Indian Navy facilities in Chennai ⓘ |
| operatedBy | Chennai Port Authority ⓘ |
| overseenBy | Ministry of Ports, Shipping and Waterways ⓘ |
| ownedBy | Government of India ⓘ |
| partOf | Indian maritime infrastructure ⓘ |
| portType | major port ⓘ |
| primaryFunction |
cargo handling
ⓘ
container handling ⓘ passenger services ⓘ |
| regionTimeZone | Indian Standard Time ⓘ |
| servesCity | Chennai ⓘ |
| servesRegion |
South India
ⓘ
Tamil Nadu ⓘ |
| status | operational ⓘ |
| strategicRole | key maritime gateway on India’s southeastern coast ⓘ |
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: Madras Port Description of subject: Madras Port, now known as Chennai Port, is one of India’s oldest and busiest seaports, serving as a key maritime gateway on the southeastern coast of the country.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Chennai Port