<http://iconclass.org/49L52%28%2B54%29> <http://www.w3.org/2004/02/skos/core#broader> <http://iconclass.org/49L52%28%2B5%29> .
<http://iconclass.org/49L52%28%2B54%29> <http://www.w3.org/2004/02/skos/core#prefLabel> "pencil (+ experiment ~ scientific research)"@en .
<http://iconclass.org/49L52%28%2B54%29> <http://www.w3.org/2004/02/skos/core#narrower> <http://iconclass.org/49L52%28%2B541%29> .