"socialist movement" . "Belgian Socialists" . . . "1945" . "1978" . . . . . . "country's Socialist Party" . . "Belgian Socialist Party (Luxembourg)" . . . . . . . . . . "Belgian Socialist Party" . . . . . . . "BSP/PSB" . "PSB-BSP" . . . . "Socialist Party" . . "BSP" . . "Belgian Socialist delegates" . . . . . . "Red" . . . . "Belgian Socialist Party (Flanders)" . . "SP" . . . . . "Belgische Socialistische Partij" . . "Belgian Socialist" . "PSB" . . "socialist parties" . . . "BSP-PSB" . . . "Socialists" . . . . "Belgian Socialist Party (Wallonia)" . . . . . . "Belgian Socialist Party" . . . . . . "Socialist Party caucus" . "Belgian Socialist Party (Brussels)" . . "socialist" . . "Belgian socialist" . . . . . . . "PSB\u2013BSP" . . . "Socialist" .