PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX wot: <http://xmlns.com/wot/0.1/>
PREFIX foaf.rdf: <file:foaf.rdf>
PREFIX owl: <http://www.w3.org/2002/07/owl#>

SELECT DISTINCT ?prop ?val ?name 

FROM foaf.rdf:
FROM foaf:

WHERE {
    [
      a foaf:Person ;
      foaf:openid <http://danbri.org/> ;
      foaf:knows [ foaf:name ?name ; ?prop ?val] ;
    ] . 
    ?prop a owl:InverseFunctionalProperty .
   
}