What is {member of political party} of {Gurbanguly Berdimuhamedow} that is {start time} is {2013-0-0} ?
In 2013, what political party was Gurbanguly Berdimuhamedow a member of?
SELECT ?obj WHERE { wd:Q57530 p:P102 ?s . ?s ps:P102 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'2013')) }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q57530> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P102> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P580> <2013-0-0>
} 

Gurbanguly Berdimuhamedow was a member of which political party in 2013?