SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/manager> <http://dbpedia.org/resource/Piotr_Baron> . ?x <http://dbpedia.org/property/nickname> ?uri . }
What is the nickname of the club managed by Piotr baron?
SELECT DISTINCT ?a WHERE { ?g property:nickname ?a . . ?g property:manager resource:Piotr_Baron }
Sparta
[Sparta] is the nickname of the club whose manager is Piotr Baron.
[Sparta] is the nickname of the club managed by Peter Baron.
The Nickname of the person whose club manager is him is [Sparta].
The nickname of an person whose club he manages is [Sparta].