Sentence:  In late 1957 the M.P. ( Mouvement Populaire ) appeared and in the spring of 1958 the internal strains of the Istiqlal was revealed when the <WSD>third</WSD> Council of Government under Balafrej was formed without support from progressive elements in the party . 
Meaning of the word marked with <WSD> tags:  coming next after the second and just before the fourth in position