@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix schema: <http://schema.org/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix dbo: <http://dbpedia.org/ontology/> .
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix : <https://gemini.google.com/share/e37d9615f322#> .

<https://gemini.google.com/share/e37d9615f322#> a owl:Ontology ;
    rdfs:label "Survey 2026 Data Engineering Ontology" ;
    dc:creator "AI Assistant" ;
    rdfs:comment "A comprehensive ontology defining the terms used in the 2026 Data Engineering survey knowledge graph." ;
    owl:versionInfo "1.0" .

# --- Classes ---

:SurveyResponse a owl:Class ;
    rdfs:subClassOf schema:SurveyResponse ;
    rdfs:label "Survey Response" ;
    rdfs:comment "Represents an individual response record from the 2026 Data Engineering survey." ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:Industry a owl:Class ;
    rdfs:subClassOf schema:Industry ;
    rdfs:label "Industry Category" ;
    rdfs:comment "A high-level industry classification (e.g., Tech, Finance)." ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:Role a owl:Class ;
    rdfs:subClassOf schema:Role ;
    rdfs:label "Professional Role" ;
    rdfs:comment "A specific job title or role held by a survey respondent." ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

# --- Object Properties ---

:industry a owl:ObjectProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range :Industry ;
    rdfs:subPropertyOf schema:industry ;
    rdfs:label "has industry entity" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:jobRole a owl:ObjectProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range :Role ;
    rdfs:subPropertyOf schema:jobTitle ;
    rdfs:label "has job role entity" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

dbo:sic a owl:ObjectProperty ;
    rdfs:label "SIC Reference" ;
    rdfs:comment "Links a survey response or industry to its official SIC manual entry." ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

dbo:naics a owl:ObjectProperty ;
    rdfs:label "NAICS Reference" ;
    rdfs:comment "Links a survey response or industry to its official NAICS code entry." ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

dbo:occupationalCategory a owl:ObjectProperty ;
    rdfs:label "SOC Reference" ;
    rdfs:comment "Links a professional role to its official O*NET SOC code entry." ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

schema:spatialCoverage a owl:ObjectProperty ;
    rdfs:label "Spatial Coverage" ;
    rdfs:comment "Links the response to a DBpedia region resource." ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

# --- Datatype Properties ---

:timestamp a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "Submission Timestamp" ;
    rdfs:comment """The date and time the survey was submitted.""" ;
    rdfs:subPropertyOf schema:dateCreated ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:role a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "Role Literal" ;
    rdfs:comment """The literal job title provided by the participant.""" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:orgsize a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "Organization Size" ;
    rdfs:comment """The size of the participant's organization.""" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:industry a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "Industry Literal" ;
    rdfs:comment """The literal industry name provided by the participant.""" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:teamfocus a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "Team Focus" ;
    rdfs:comment """The primary responsibilities of the participant's team.""" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:storageenvironment a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "Storage Environment" ;
    rdfs:comment """The primary data storage technology used.""" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:orchestration a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "Orchestration Tool" ;
    rdfs:comment """The tool used for data pipeline orchestration.""" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:aiusagefrequency a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "AI Usage Frequency" ;
    rdfs:comment """How often the participant uses AI in their work.""" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:aihelpswith a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "AI Assistance Areas" ;
    rdfs:comment """Specific tasks where AI provides the most value.""" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:aiadoption a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "AI Adoption Level" ;
    rdfs:comment """The current status of AI integration in the company.""" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:modelingapproach a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "Data Modeling Approach" ;
    rdfs:comment """The strategy used for data modeling (e.g., Kimball, Data Vault).""" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:modelingpainpoints a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "Modeling Pain Points" ;
    rdfs:comment """Common issues or bottlenecks faced during modeling.""" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:architecturetrend a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "Architecture Trend" ;
    rdfs:comment """The emerging architectural pattern observed or adopted.""" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:biggestbottleneck a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "Biggest Bottleneck" ;
    rdfs:comment """The primary obstacle to data engineering efficiency.""" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:teamgrowth2026 a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "Projected Team Growth" ;
    rdfs:comment """Anticipated changes in team size by 2026.""" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:educationtopic a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "Preferred Education Topic" ;
    rdfs:comment """Topics the participant is interested in learning more about.""" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:industrywish a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "Industry Wishlist" ;
    rdfs:comment """Participant suggestions or improvements for the data engineering field.""" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:region a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "Region Literal" ;
    rdfs:comment """The geographical region of the participant.""" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:industrysiccode a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "SIC Code" ;
    rdfs:comment """The 4-digit Standard Industrial Classification code.""" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:industrynaicscode a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "NAICS Code" ;
    rdfs:comment """The 6-digit North American Industry Classification System code.""" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .

:rolesoccode a owl:DatatypeProperty ;
    rdfs:domain :SurveyResponse ;
    rdfs:range xsd:string ;
    rdfs:label "SOC Code" ;
    rdfs:comment """The Standard Occupational Classification code.""" ;
    rdfs:isDefinedBy <https://gemini.google.com/share/e37d9615f322#> .