Task: Question Answering
Input (English): Context: Perkonkrusts (Latvian pronunciation: (per.kon.krusts), ''Thunder Cross''), was a Latvian ultra-nationalist, anti-German and antisemitic political party founded in 1933 by Gustavs Celmins, borrowing elements of German nationalism--but being unsympathetic to German National Socialism at the time--and Italian fascism. 
 Question: Who led Perkonkrusts?
Output (English): gustavs celmiņš