queries.txt

# Query to select all souvenirs bought in 'Paris'
PREFIX schema: <http://schema.org/>
PREFIX my: <https://themn.github.io/semantic-souvenir-catalog/vocabulary.ttl#>

SELECT ?souvenir ?name
WHERE {
  ?souvenir a my:Souvenir ;
            schema:name ?name ;
            my:boughtIn ?cityNode .
  ?cityNode schema:name "Paris" .
}

# Query to select all souvenirs bought after 2020
PREFIX schema: <http://schema.org/>
PREFIX my: <https://themn.github.io/semantic-souvenir-catalog/vocabulary.ttl#>

SELECT ?name ?date
WHERE {
  ?souvenir a my:Souvenir ;
            schema:name ?name ;
            my:tripDate ?date .
            
  # Simple string comparison (Works for ISO dates)
  FILTER (STR(?date) > "2020-12-31")
}

# Query to select all souvenirs that are "Clothing"
PREFIX schema: <http://schema.org/>
PREFIX my: <https://themn.github.io/semantic-souvenir-catalog/vocabulary.ttl#>

SELECT ?souvenir ?name
WHERE {
  ?souvenir a my:Souvenir ;
            schema:name ?name ;
            schema:genre "Clothing" .
}

# Query to select name and city of souvenirs bought by "Alice"
PREFIX schema: <http://schema.org/>
PREFIX my: <https://themn.github.io/semantic-souvenir-catalog/vocabulary.ttl#>

SELECT ?souvenir ?name ?city
WHERE {
  ?souvenir a my:Souvenir ;
            schema:name ?name ;
            my:buyer ?buyerNode ;
            my:boughtIn ?cityNode .
  ?buyerNode schema:name "Alice" .
  ?cityNode schema:name ?city .
}