sparql 1

PREFIX ecrm: <http://erlangen-crm.org/current/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
SELECT ?name {
    ?actor rdf:type ecrm:E39_Actor .
    ?actor ecrm:P3_has_note "alkotó" .
    ?actor rdfs:label ?name

    FILTER regex(?name, "giovanni", "i")
}

PREFIX ecrm: <http://erlangen-crm.org/current/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
SELECT ?actor ?creation ?thing {
    ?actor rdf:type ecrm:E39_Actor .
    ?creation rdf:type ecrm:E65_Creation .
    ?thing rdf:type ecrm:E18_Physical_Thing .
    ?creation ecrm:P11_had_participant ?actor .
    ?thing ecrm:P12i_was_present_at ?creation
}

PREFIX ecrm: <http://erlangen-crm.org/current/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
SELECT ?name ?title {
    ?actor rdf:type ecrm:E39_Actor .
    ?actor rdfs:label ?name .
    ?creation rdf:type ecrm:E65_Creation .
    ?thing rdf:type ecrm:E18_Physical_Thing .
    ?creation ecrm:P11_had_participant ?actor .
    ?thing ecrm:P12i_was_present_at ?creation .
    ?creation ecrm:P3_has_note ?props .
    ?thing rdfs:label ?title

    FILTER regex(?props, "rézkarc", "i")
    FILTER regex(?name, "rembrandt", "i")
}