PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
PREFIX schema: <https://schema.org/>
PREFIX wgs84: <http://www.w3.org/2003/01/geo/wgs84_pos#>
PREFIX wdtn: <http://www.wikidata.org/prop/direct-normalized/>
PREFIX migrants: <http://example.org/migrants/>
PREFIX person: <http://example.org/migrants/person/>
PREFIX personp: <http://example.org/migrants/person#>
PREFIX work: <http://example.org/migrants/work/>
PREFIX workp: <http://example.org/migrants/work#>
PREFIX location: <http://example.org/migrants/location/>
PREFIX locationp: <http://example.org/migrants/location#>

CONSTRUCT {
  ?s ?p ?o .
}
WHERE {
  {
    # Hop 0: Triples about Irene Abendroth (as subject)
    ?s ?p ?o .
    FILTER(?s = person:AbeIre-00)
  }
  UNION
  {
    # Hop 1 (incoming): Triples about nodes referencing the anchor
    ?s ?p ?o .
    ?s ?ref person:AbeIre-00 .
  }
  UNION
  {
    # Hop 1 (outgoing): Triples about IRI nodes referenced by the anchor
    ?s ?p ?o .
    person:AbeIre-00 ?ref ?s .
    FILTER(isIRI(?s))
  }
  UNION
  {
    # Hop 2: Triples about IRI nodes referenced by hop-1 nodes
    ?s ?p ?o .
    ?hop1 ?r1 person:AbeIre-00 .
    ?hop1 ?r2 ?s .
    FILTER(isIRI(?s) && ?s != person:AbeIre-00)
  }
}