# Example 30 No Constraint
# https://book.validatingrdf.com/bookHtml010.html#sec69

PREFIX :       <http://example.org/>
PREFIX schema: <http://schema.org/>
PREFIX xsd:  <http://www.w3.org/2001/XMLSchema#>

:User {
 schema:name . ;
 schema:alternateName . * ;
 schema:birthDate . ?
}