What is the position held by Mr. Gordon Brown in electoral district as a member of the 54th parliament of the United Kingdom?
SELECT ?value WHERE { wd:Q10648 p:P39 ?s . ?s ps:P39 wd:Q35647955 . ?s pq:P768 ?value}
gordon brown: Q10648 member of the 54th parliament of the united kingdom: Q35647955