<http://data.carnegiehall.org/events/10507/work_21> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://data.carnegiehall.org/model/WorkPerformance> .
<http://data.carnegiehall.org/events/10507/work_21> <http://schema.org/workPerformed> <http://data.carnegiehall.org/works/18291> .
<http://data.carnegiehall.org/events/10507/work_21> <http://www.w3.org/2000/01/rdf-schema#label> "Halka: Choral Sunday Song" .