Mastro
E641816
Mastro is an Ontology-Based Data Access (OBDA) system that enables querying relational data sources through an ontology layer using high-level semantic queries.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mastro canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7115527 — 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: Mastro Context triple: [OBDA systems, exampleImplementation, Mastro]
-
A.
Barbato
Barbato is an Italian surname associated with individuals of Italian heritage, including Nancy Barbato, the first wife of singer Frank Sinatra.
-
B.
Mornello
Mornello is a locality or frazione within the municipality of Cernobbio in the Province of Como, Lombardy, northern Italy.
-
C.
Silvestri
Silvestri is a surname most prominently associated with American composer Alan Silvestri, known for his iconic film scores such as those for the "Back to the Future" and "Avengers" franchises.
-
D.
Balducci
Balducci is a member of the group or organization known as The Network.
-
E.
Matarazzo
Matarazzo is the surname of American actor Gaten Matarazzo, best known for his role as Dustin Henderson on the Netflix series "Stranger Things."
- 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: Mastro Target entity description: Mastro is an Ontology-Based Data Access (OBDA) system that enables querying relational data sources through an ontology layer using high-level semantic queries.
-
A.
Barbato
Barbato is an Italian surname associated with individuals of Italian heritage, including Nancy Barbato, the first wife of singer Frank Sinatra.
-
B.
Mornello
Mornello is a locality or frazione within the municipality of Cernobbio in the Province of Como, Lombardy, northern Italy.
-
C.
Silvestri
Silvestri is a surname most prominently associated with American composer Alan Silvestri, known for his iconic film scores such as those for the "Back to the Future" and "Avengers" franchises.
-
D.
Balducci
Balducci is a member of the group or organization known as The Network.
-
E.
Matarazzo
Matarazzo is the surname of American actor Gaten Matarazzo, best known for his role as Dustin Henderson on the Netflix series "Stranger Things."
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
OBDA system
ⓘ
Ontology-Based Data Access system ⓘ software system ⓘ |
| aimsAt |
decoupling data sources from applications
ⓘ
providing a semantic view over data ⓘ |
| belongsToCategory |
data access middleware
ⓘ
ontology-based systems ⓘ |
| enables |
access to relational data via ontology
ⓘ
virtual integration of data sources ⓘ |
| goal | enable querying relational data through an ontology layer ⓘ |
| hasComponent |
mapping engine
ⓘ
ontology reasoner ⓘ query rewriting engine ⓘ |
| hasDomain | Ontology-Based Data Access NERFINISHED ⓘ |
| hasFeature |
ontology-based query answering
ⓘ
semantic abstraction over data ⓘ support for high-level queries ⓘ virtual data integration ⓘ |
| hasInput |
mapping specification
ⓘ
ontology ⓘ relational database ⓘ |
| hasOutput | query answers over data ⓘ |
| implements | OBDA principles ⓘ |
| isUsedFor |
data integration
ⓘ
information access ⓘ semantic interoperability ⓘ |
| maps | ontology predicates to relational schemas ⓘ |
| operatesOn |
database instances
ⓘ
relational schemas ⓘ |
| performs |
query rewriting
ⓘ
query unfolding ⓘ |
| reliesOn |
logical mappings
ⓘ
ontologies ⓘ |
| separates | conceptual level from data level ⓘ |
| supports |
OBDA scenarios
ⓘ
SPARQL queries ⓘ conjunctive queries ⓘ high-level semantic queries ⓘ |
| supportsTask |
query answering over relational data
ⓘ
querying relational data sources ⓘ semantic query answering ⓘ |
| targets |
RDBMS
ⓘ
relational database management systems ⓘ |
| uses |
database query processing
ⓘ
logical reasoning ⓘ mapping assertions ⓘ ontology layer ⓘ ontology-mediated queries ⓘ |
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: Mastro Description of subject: Mastro is an Ontology-Based Data Access (OBDA) system that enables querying relational data sources through an ontology layer using high-level semantic queries.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.