N. M. Perera
E834279
N. M. Perera was a prominent Sri Lankan Marxist politician, economist, and leader of the Lanka Sama Samaja Party who played a key role in the country’s leftist and trade union movements.
All labels observed (1)
| Label | Occurrences |
|---|---|
| N. M. Perera canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9987120 — 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: N. M. Perera Context triple: [Minister of Finance of Sri Lanka, officeHoldersInclude, N. M. Perera]
-
A.
D. M. Jayaratne
D. M. Jayaratne was a Sri Lankan politician who served as Prime Minister and held several key government positions during his long career.
-
B.
D. S. Gunasekera
D. S. Gunasekera was a Sri Lankan political figure credited with founding the Sri Lanka Freedom Party, one of the country’s major political parties.
-
C.
A. T. Ariyaratne
A. T. Ariyaratne is a Sri Lankan Buddhist leader and social reformer best known as the founder of the Sarvodaya Shramadana Movement, which applies Buddhist principles to grassroots community development and peacebuilding.
-
D.
K. B. Ratnayake
K. B. Ratnayake was a Sri Lankan politician who served as Speaker of the Parliament and held several key ministerial and party leadership positions in the Sri Lanka Freedom Party.
-
E.
C. P. de Silva
C. P. de Silva was a prominent Sri Lankan politician and influential mid-20th-century statesman who played a key role in shaping the country’s post-independence political landscape.
- 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: N. M. Perera Target entity description: N. M. Perera was a prominent Sri Lankan Marxist politician, economist, and leader of the Lanka Sama Samaja Party who played a key role in the country’s leftist and trade union movements.
-
A.
D. M. Jayaratne
D. M. Jayaratne was a Sri Lankan politician who served as Prime Minister and held several key government positions during his long career.
-
B.
D. S. Gunasekera
D. S. Gunasekera was a Sri Lankan political figure credited with founding the Sri Lanka Freedom Party, one of the country’s major political parties.
-
C.
A. T. Ariyaratne
A. T. Ariyaratne is a Sri Lankan Buddhist leader and social reformer best known as the founder of the Sarvodaya Shramadana Movement, which applies Buddhist principles to grassroots community development and peacebuilding.
-
D.
K. B. Ratnayake
K. B. Ratnayake was a Sri Lankan politician who served as Speaker of the Parliament and held several key ministerial and party leadership positions in the Sri Lanka Freedom Party.
-
E.
C. P. de Silva
C. P. de Silva was a prominent Sri Lankan politician and influential mid-20th-century statesman who played a key role in shaping the country’s post-independence political landscape.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Marxist
ⓘ
economist ⓘ human ⓘ politician ⓘ |
| academicDegree | PhD in economics ⓘ |
| coFounded | Lanka Sama Samaja Party NERFINISHED ⓘ |
| countryOfCitizenship |
Ceylon
NERFINISHED
ⓘ
Sri Lanka NERFINISHED ⓘ |
| dateOfBirth | 1905-06-06 ⓘ |
| dateOfDeath | 1979-08-14 ⓘ |
| doctoralAdvisor | Harold Laski NERFINISHED ⓘ |
| educatedAt |
Ananda College
NERFINISHED
ⓘ
London School of Economics ⓘ University of London ⓘ |
| ethnicGroup | Sinhalese NERFINISHED ⓘ |
| fullName | Nanayakkarapathirage Martin Perera NERFINISHED ⓘ |
| heldMayoralOfficeEnd | 1956 ⓘ |
| heldMayoralOfficeStart | 1954 ⓘ |
| ideology |
Marxism
ⓘ
Trotskyism ⓘ |
| knownFor |
leadership of the Lanka Sama Samaja Party
ⓘ
opposition to colonial rule in Ceylon ⓘ role in Sri Lankan leftist politics ⓘ role in trade union movement in Sri Lanka ⓘ |
| movement |
Sri Lankan leftist movement
ⓘ
trade union movement in Sri Lanka ⓘ |
| notableFor |
advocacy of socialist economic policies in Sri Lanka
ⓘ
leading figure of Trotskyist movement in South Asia ⓘ |
| notableWork | Doctoral thesis on public finance in Ceylon ⓘ |
| parliamentaryConstituencyRepresented |
Ruwanwella
NERFINISHED
ⓘ
Yatiyantota NERFINISHED ⓘ |
| parliamentaryTermEnd | 1977 ⓘ |
| parliamentaryTermStart | 1947 ⓘ |
| placeOfBirth | Ruwanwella, Ceylon NERFINISHED ⓘ |
| placeOfDeath | Colombo, Sri Lanka NERFINISHED ⓘ |
| politicalParty | Lanka Sama Samaja Party NERFINISHED ⓘ |
| positionHeld |
Leader of the Opposition of Ceylon
ⓘ
Mayor of Colombo ⓘ Member of Parliament of Ceylon ⓘ Member of the State Council of Ceylon ⓘ Minister of Finance of Sri Lanka NERFINISHED ⓘ |
| religion | Buddhism ⓘ |
| servedAsFinanceMinisterEnd |
1965
ⓘ
1975 ⓘ |
| servedAsFinanceMinisterStart |
1964
ⓘ
1970 ⓘ |
| spouse | Selina Perera NERFINISHED ⓘ |
| wasImprisonedFor | anti-colonial political activities ⓘ |
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: N. M. Perera Description of subject: N. M. Perera was a prominent Sri Lankan Marxist politician, economist, and leader of the Lanka Sama Samaja Party who played a key role in the country’s leftist and trade union movements.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.