SPARQL CONSTRUCT queries transform graph-05 into graph-06 using the tm:
vocabulary. Persons keep schema:Person properties, works become
org:Membership, professions become schema:Occupation, enumerations
become skos:Concept with tm: subtypes. Split 010-occupations into two
query files (passthrough + retype). Includes step-06 binary, Rakefile
tasks, and example data for Irene Abendroth.
SPARQL UPDATE queries add standard vocabulary properties alongside
existing custom predicates: schema:Person/Place/Organization types,
schema:givenName/familyName/birthDate, owl:sameAs for authority links,
wgs84:lat/long for coordinates, skos:Concept/prefLabel for enumerations,
and rdfs:label for persons.
Use W3C Organization Ontology for work engagements (org:member,
org:organization). Profession instances become schema:Occupation.
Custom properties (workLocation, employmentType, etc.) are kept
with updated domains/ranges.
Add namespace prefixes (rdfs, migrants, person, personp, work, workp,
location, locationp) to query files. Use --prettify in Rake tasks so
example files use abbreviated IRIs. Fix 2hop task to use graph-02.
SPARQL queries to list classes and properties, and src/schema.rb
CLI to run them against any graph file. Includes bundler/setup
for compatibility with Ruby 4.0 without bundle exec.
19 queries in updates/ convert categorical columns (continent, country,
city, gender, profession, etc.) from literals to typed RDF objects with
rdfs:label. map/step-02.rb applies them to produce data/graph-02.ttl.
Also fix step-01.rb to sanitize column names with spaces and avoid
prefix serialization issues with fragment IRIs.
