@base <http://example.com/ns> .
@prefix ex: <http://example.com/ns#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix sh: <http://www.w3.org/ns/shacl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

ex:IdAndUsernameAreBothFunctionalProperties
	a sh:NodeShape  ;
	sh:targetObjectsOf ex:id, ex:username ;
	sh:and (
	        [
	                sh:path [sh:inversePath ex:id] ;
         		sh:maxCount 1 ;
         	]
	        [
	                sh:path [sh:inversePath ex:username] ;
         		sh:maxCount 1 ;
         	]

	)

	 .

