MRT
E67887
MRT is the three-letter ISO 3166-1 alpha-3 country code assigned to Mauritania.
All labels observed (1)
| Label | Occurrences |
|---|---|
| MRT canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T544050 — 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: MRT Context triple: [Mauritania, ISO3166-1Alpha3, MRT]
-
A.
MRT subway
The MRT subway in Bangkok is a major rapid transit system that provides fast, air-conditioned underground and elevated rail services across key areas of the city.
-
B.
Metro Rail
Metro Rail is the urban rapid transit rail system serving Los Angeles County, providing light rail and subway services across the region.
-
C.
M train
The M train is a New York City Subway service that runs through parts of Queens, Brooklyn, and Manhattan, connecting neighborhoods such as Middle Village and Forest Hills with Midtown and Lower Manhattan.
-
D.
MRT Line 3
MRT Line 3 is a major elevated rapid transit line in Metro Manila that runs along EDSA, serving as one of the region’s primary commuter rail corridors.
-
E.
Metrorail
Metrorail is the rapid transit system serving the Washington, D.C. metropolitan area, operated by the Washington Metropolitan Area Transit Authority (WMATA).
- 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: MRT Target entity description: MRT is the three-letter ISO 3166-1 alpha-3 country code assigned to Mauritania.
-
A.
MRT subway
The MRT subway in Bangkok is a major rapid transit system that provides fast, air-conditioned underground and elevated rail services across key areas of the city.
-
B.
Metro Rail
Metro Rail is the urban rapid transit rail system serving Los Angeles County, providing light rail and subway services across the region.
-
C.
M train
The M train is a New York City Subway service that runs through parts of Queens, Brooklyn, and Manhattan, connecting neighborhoods such as Middle Village and Forest Hills with Midtown and Lower Manhattan.
-
D.
MRT Line 3
MRT Line 3 is a major elevated rapid transit line in Metro Manila that runs along EDSA, serving as one of the region’s primary commuter rail corridors.
-
E.
Metrorail
Metrorail is the rapid transit system serving the Washington, D.C. metropolitan area, operated by the Washington Metropolitan Area Transit Authority (WMATA).
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
ISO 3166-1 alpha-2 country code
ⓘ
ISO 3166-1 alpha-3 country code ⓘ |
| alpha3CodeFor | Mauritania ⓘ |
| appliesToEntityType | sovereign state ⓘ |
| assignedTo | Mauritania ⓘ |
| associatedCapital | Nouakchott ⓘ |
| associatedCountryISONumericCode | 478 ⓘ |
| category | country code ⓘ |
| codeLength | 3 ⓘ |
| codeType | alpha-3 ⓘ |
| countryName | Mauritania ⓘ |
| hasRelatedCode | MR ⓘ |
| languageOfCountry |
Arabic
ⓘ
French ⓘ |
| maintainedBy | International Organization for Standardization ⓘ |
| notationSystem | ISO 3166 ⓘ |
| partOfStandard | ISO 3166-1 ⓘ |
| regionCodeFor | Africa ⓘ |
| represents |
Mauritania
ⓘ
Mauritania ⓘ |
| script | Latin alphabet ⓘ |
| standardBody | ISO ⓘ |
| status | official ⓘ |
| usedFor |
country identification
ⓘ
international trade ⓘ statistics ⓘ transportation coding ⓘ |
| usedIn |
databases
ⓘ
international data exchange ⓘ machine-readable travel documents ⓘ |
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: MRT Description of subject: MRT is the three-letter ISO 3166-1 alpha-3 country code assigned to Mauritania.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.