OntologyClass talk:PersonFunction

Could you define what is a PersonFunction ? Isn't it a datatypeproperty function ? I don't understand the rationale for this class.

Here are some instances: ttp://dbpedia.org/resource/Mychal_Judge__Roman_Catholic_priest http://dbpedia.org/resource/Martin_Gardner__Author http://dbpedia.org/resource/Miguel_de_Icaza__Vice_President_of_Developer_Platform http://dbpedia.org/resource/Michael_Milken__financier%2C_philanthropist