PREFIX rc: <http://richcanvas.io/ns#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

SELECT $subject
WHERE {
?subject rc:hasFamilyRole rc:Spouse .
}


PREFIX rc: <http://richcanvas.io/ns#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

SELECT ?individual ?object
WHERE {
  ?individual rdf:type rc:Person .
}


PREFIX rc: <http://richcanvas.io/ns#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

SELECT ?individual ?object
WHERE {
  ?individual rdf:type rc:FamilyMembership .
  ?individual rc:hasFamilyRole rc:Wife .
}



PREFIX rc: <http://richcanvas.io/ns#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

SELECT ?person
WHERE {
  ?person rdf:type rc:Person .
  ?person rc:hasFamilyMembership ?membership .
  ?membership rdf:type rc:FamilyMembership .
  ?membership rc:hasFamilyRole rc:Wife .
}



PREFIX rc: <http://richcanvas.io/ns#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

SELECT ?person ?locality
WHERE {
  ?person rdf:type rc:Person .
  ?person rc:hasFamilyMembership ?membership .
  ?membership rdf:type rc:FamilyMembership .
  ?membership rc:hasFamilyRole rc:Wife .
  ?person rc:hasHomeAddress ?address .
  ?address rc:addressLocality "Erie"
}