# Example 78  Disjunction of datatypes
# https://book.validatingrdf.com/bookHtml010.html#sec103

PREFIX :       <http://example.org/>
PREFIX schema: <http://schema.org/>
PREFIX xsd:    <http://www.w3.org/2001/XMLSchema#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

:Product {
 rdfs:label         xsd:string OR rdf:langString;
 schema:releaseDate xsd:date OR xsd:gYear OR
                    [ "unknown-past" "unknown-future" ]
}