Piedras Negras metropolitan area
E752614
The Piedras Negras metropolitan area is an urban region in northern Coahuila, Mexico, centered on the border city of Piedras Negras across from Eagle Pass, Texas.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Piedras Negras metropolitan area canonical | 2 |
| Piedras Negras urban area | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8164457 — 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: Piedras Negras metropolitan area Context triple: [Piedras Negras International Airport, servesMetropolitanArea, Piedras Negras metropolitan area]
-
A.
Pachuca metropolitan area
The Pachuca metropolitan area is an urban agglomeration centered on the city of Pachuca, serving as a major economic and administrative hub in the Mexican state of Hidalgo.
-
B.
Orizaba metropolitan area
The Orizaba metropolitan area is an urban agglomeration in central Veracruz, Mexico, centered on the city of Orizaba and its surrounding municipalities, known for its industrial activity and proximity to Pico de Orizaba.
-
C.
Bajío metropolitan area
The Bajío metropolitan area is a major urban and economic region in central Mexico centered around key cities such as León in the state of Guanajuato.
-
D.
Toluca metropolitan area
The Toluca metropolitan area is a major urban and industrial region in central Mexico centered on the city of Toluca, serving as an important economic and transportation hub west of Mexico City.
-
E.
Puebla metropolitan area
The Puebla metropolitan area is a major urban and economic center in central Mexico that serves as the core city-region surrounding the city of Puebla.
- 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: Piedras Negras metropolitan area Target entity description: The Piedras Negras metropolitan area is an urban region in northern Coahuila, Mexico, centered on the border city of Piedras Negras across from Eagle Pass, Texas.
-
A.
Pachuca metropolitan area
The Pachuca metropolitan area is an urban agglomeration centered on the city of Pachuca, serving as a major economic and administrative hub in the Mexican state of Hidalgo.
-
B.
Orizaba metropolitan area
The Orizaba metropolitan area is an urban agglomeration in central Veracruz, Mexico, centered on the city of Orizaba and its surrounding municipalities, known for its industrial activity and proximity to Pico de Orizaba.
-
C.
Bajío metropolitan area
The Bajío metropolitan area is a major urban and economic region in central Mexico centered around key cities such as León in the state of Guanajuato.
-
D.
Toluca metropolitan area
The Toluca metropolitan area is a major urban and industrial region in central Mexico centered on the city of Toluca, serving as an important economic and transportation hub west of Mexico City.
-
E.
Puebla metropolitan area
The Puebla metropolitan area is a major urban and economic center in central Mexico that serves as the core city-region surrounding the city of Puebla.
- F. None of above. chosen
Statements (37)
| Predicate | Object |
|---|---|
| instanceOf | metropolitan area ⓘ |
| borderCityAcrossFrom | Eagle Pass, Texas NERFINISHED ⓘ |
| borderStateOnUSSide | Texas NERFINISHED ⓘ |
| borderWith | United States of America NERFINISHED ⓘ |
| climate | semi-arid climate ⓘ |
| country | Mexico ⓘ |
| crossBorderAgglomerationWith | Eagle Pass micropolitan area NERFINISHED ⓘ |
| currency | Mexican peso ⓘ |
| formsTransnationalRegion | Piedras Negras–Eagle Pass region NERFINISHED ⓘ |
| hasAirport | Piedras Negras International Airport NERFINISHED ⓘ |
| hasBorderCrossing |
Piedras Negras–Eagle Pass International Bridge I
NERFINISHED
ⓘ
Piedras Negras–Eagle Pass International Bridge II NERFINISHED ⓘ |
| hasCity |
Nava, Coahuila
NERFINISHED
ⓘ
Piedras Negras NERFINISHED ⓘ |
| hasCoreCity | Piedras Negras NERFINISHED ⓘ |
| hasMunicipality |
Nava Municipality
NERFINISHED
ⓘ
Piedras Negras Municipality NERFINISHED ⓘ |
| hasUrbanFunction |
border logistics center
ⓘ
commercial hub ⓘ industrial center ⓘ |
| languageMajority | Spanish ⓘ |
| locatedIn |
Coahuila
NERFINISHED
ⓘ
Northern Mexico ⓘ |
| locatedInState | Coahuila de Zaragoza NERFINISHED ⓘ |
| locatedOnRiver | Rio Grande NERFINISHED ⓘ |
| partOf | Mexico–United States border region NERFINISHED ⓘ |
| primaryEconomicActivities |
cross-border trade
ⓘ
manufacturing ⓘ maquiladora industry ⓘ services ⓘ |
| region | Northeast Mexico NERFINISHED ⓘ |
| riverAsInternationalBoundary | Rio Grande NERFINISHED ⓘ |
| roadConnectionTo |
Eagle Pass, Texas
NERFINISHED
ⓘ
Monterrey NERFINISHED ⓘ Saltillo NERFINISHED ⓘ |
| timeZone |
Central Time Zone
ⓘ
surface form:
Central Standard Time
|
| timeZoneDST |
Central Time Zone
ⓘ
surface form:
Central Daylight Time
|
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: Piedras Negras metropolitan area Description of subject: The Piedras Negras metropolitan area is an urban region in northern Coahuila, Mexico, centered on the border city of Piedras Negras across from Eagle Pass, Texas.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Piedras Negras International Airport
this entity surface form:
Piedras Negras urban area