Mention the year span and the electoral district area of John Gorton during serving as Member of the Australian House of Representatives
SELECT ?value1 ?value2 WHERE { wd:Q356411 p:P39 ?s . ?s ps:P39 wd:Q18912794 . ?s pq:P2715 ?value1 . ?s pq:P768 ?value2 }
john gorton: Q356411 member of the australian house of representatives: Q18912794