@prefix : <http://laurenzi.ch#> .
@prefix sh: <http://www.w3.org/ns/shacl#> .

:PersonShape a sh:NodeShape ;
    sh:targetClass :Person ;
    sh:property [
        sh:path :hasParent ;
        sh:maxCount 2 ;
        sh:message "A person cannot have more than two parents." ;
  ] 
