what are all the parties?
radical civic union (ucr), independent socialist, conservative, democratic (cordoba province), unified ucr (santa fe province), liberal (tucuman province), democratic progressive, antipersonalist ucr, autonomist party of corrientes, lencinist ucr (mendoza province), socialist, others, invalid votes
how many seats did they have?
98, 15, 12, 7, 4, 4, 3, 3, 2, 1, 1, 4, 4b
along with independent socialist, which party had at least 15 seats?
radical civic union (ucr)