Lantmanna Party
Erik Gustaf Boström of the Lantmanna Party ( New Lantmanna Party during the split ) was able to form a cabinet twice , as prime minister in 1891–1900 and again in 1902–1905 . 
<triplet> Erik Gustaf Boström <subj> Lantmanna Party <obj> member of political party <subj> Lantmanna Party <obj> member of political party