prefix bio:
prefix foaf:
prefix time:
prefix xsd:
prefix ex:
prefix thing:
select ?name where {
?p ex:subject thing:maria .
?p ex:property foaf:name .
?p time:start ?start .
?p time:end ?end .
?p ex:value ?name .
filter (xsd:integer(?start) <= 1891 && xsd:integer(?end) >= 1891) .
}