ex:PDH a dpv:Process ;
    # information about personal data is not available at the moment
    dpv:hasPersonalData dpv:NotAvailable ; 
    # personal data is not involved, so we specify not applicable
    dpv:hasPersonalData dpv:NotApplicable ;
    # we don't know yet if personal data is involved - so it is unknown
    dpv:hasPersonalData dpv:UnknownApplicability ;
    # another way to indicate applicability - we know some personal data
    # is involved but we don't know anything more about it
    dpv:hasPersonalData [
        a dpv:PersonalData ;
        dpv:hasApplicability dpv:NotAvailable ;
    ] .