What is {head of government} of {Czech Republic} that is {start time} is {1993-1-1} ?
Who became the head of the Czech Republic in 1993?
Who was the head of government of the Czech Republic on January 1st, 1993?
SELECT ?v WHERE { resource:Czech_Republic property:head_of_government ?n . ?n property:head_of_government ?v . ?n property:start_time ?r . FILTER ( CONTAINS ( YEAR ( ?r ) , '1993' ) ) }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q213> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P6> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P580> <1993-1-1>
} 

SELECT ?obj WHERE { wd:Q213 p:P6 ?s . ?s ps:P6 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1993')) }