The Leveller
It was published during the years of the Labour government of James Callaghan and the beginning of the era of the Conservative administration of Margaret Thatcher . 
<triplet> years of the Labour government <subj> beginning of the era of the Conservative administration <obj> followed by <triplet> beginning of the era of the Conservative administration <subj> years of the Labour government <obj> replaces <subj> Margaret Thatcher <obj> head of government