Madras, India
E664868
Madras, India—now known as Chennai—is a major coastal metropolis in South India and the capital of the state of Tamil Nadu.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Madras | 41 |
| Madras (former name of Chennai, India) | 1 |
| Madras (now Chennai) | 1 |
| Madras, India canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7440531 — 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, India Context triple: [P. Subbarayan, placeOfDeath, Madras, India]
-
A.
Madras
Madras is a small city in central Oregon known as an agricultural hub and gateway to outdoor recreation in the surrounding high desert region.
-
B.
Madras
Madras is an unincorporated community located in Coweta County in the U.S. state of Georgia.
-
C.
Vellore
Vellore is a historic city in southern India known for its fort, educational and medical institutions, and location along the Palar River in the state of Tamil Nadu.
-
D.
Vellore
Vellore is a residential neighbourhood in the city of Vaughan, Ontario, known for its suburban housing, schools, and community amenities.
-
E.
Mambai
Mambai is an Austronesian language spoken primarily in East Timor, where it is one of the country’s major indigenous languages.
- 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, India Target entity description: Madras, India—now known as Chennai—is a major coastal metropolis in South India and the capital of the state of Tamil Nadu.
-
A.
Madras
Madras is a small city in central Oregon known as an agricultural hub and gateway to outdoor recreation in the surrounding high desert region.
-
B.
Madras
Madras is an unincorporated community located in Coweta County in the U.S. state of Georgia.
-
C.
Vellore
Vellore is a historic city in southern India known for its fort, educational and medical institutions, and location along the Palar River in the state of Tamil Nadu.
-
D.
Vellore
Vellore is a residential neighbourhood in the city of Vaughan, Ontario, known for its suburban housing, schools, and community amenities.
-
E.
Mambai
Mambai is an Austronesian language spoken primarily in East Timor, where it is one of the country’s major indigenous languages.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
city
ⓘ
metropolis ⓘ state capital ⓘ |
| administrativeDivision | Greater Chennai Corporation NERFINISHED ⓘ |
| coastlineFeature | Coromandel Coast of Bay of Bengal NERFINISHED ⓘ |
| colonialPower | United Kingdom ⓘ |
| country | India ⓘ |
| currentName | Chennai NERFINISHED ⓘ |
| formerNameOf | Chennai NERFINISHED ⓘ |
| foundedBy | British East India Company NERFINISHED ⓘ |
| hasAirport | Chennai International Airport NERFINISHED ⓘ |
| hasBeach |
Elliot’s Beach
NERFINISHED
ⓘ
Marina Beach NERFINISHED ⓘ |
| hasClimate | tropical wet and dry climate ⓘ |
| hasEducationalInstitution |
Anna University
NERFINISHED
ⓘ
Indian Institute of Technology Madras NERFINISHED ⓘ |
| hasNickname |
Detroit of India
ⓘ
Gateway to South India ⓘ |
| hasRailwayStation |
Chennai Central
NERFINISHED
ⓘ
Chennai Egmore NERFINISHED ⓘ |
| hasSeaport |
Chennai Port
NERFINISHED
ⓘ
Ennore Port NERFINISHED ⓘ |
| hasUniversity | University of Madras NERFINISHED ⓘ |
| isCapitalOf | Tamil Nadu NERFINISHED ⓘ |
| isEconomicCentreOf | Tamil Nadu NERFINISHED ⓘ |
| isMajorUrbanCentreOf | South India NERFINISHED ⓘ |
| knownFor |
Bharatanatyam dance
ⓘ
automobile industry ⓘ classical Carnatic music ⓘ film industry (Kollywood) ⓘ information technology industry ⓘ |
| KöppenClimateClassification | Aw ⓘ |
| locatedIn |
Chennai district
NERFINISHED
ⓘ
Chennai metropolitan area NERFINISHED ⓘ South India ⓘ Tamil Nadu ⓘ |
| locatedOn | East Coast Road corridor NERFINISHED ⓘ |
| locatedOnCoastOf | Bay of Bengal NERFINISHED ⓘ |
| majorLanguage |
English
ⓘ
Tamil NERFINISHED ⓘ |
| officialLanguage | Tamil NERFINISHED ⓘ |
| partOf | Coromandel Coast NERFINISHED ⓘ |
| river |
Adyar River
NERFINISHED
ⓘ
Cooum River NERFINISHED ⓘ Kosasthalaiyar River NERFINISHED ⓘ |
| timeZone | Indian Standard Time ⓘ |
| UTCOffset | +05:30 ⓘ |
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, India Description of subject: Madras, India—now known as Chennai—is a major coastal metropolis in South India and the capital of the state of Tamil Nadu.
Referenced by (44)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Madras, India
subject linked to:
Dr. T. M. Nair
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
subject linked to:
Madras
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
subject linked to:
reconstruction of religious thought in Islam
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
subject linked to:
Sir George Frederick Stanley
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India
linked to: Madras, India