Chilean transition to democracy
Christian Democrat Patricio Aylwin served from 1990 to 1994 and was succeeded by another Christian Democrat , Eduardo Frei Ruiz-Tagle ( son of Eduardo Frei Montalva ) , leading the same coalition for a six-year term . 
<triplet> Patricio Aylwin <subj> Christian Democrat <obj> member of political party <triplet> Eduardo Frei Ruiz-Tagle <subj> Christian Democrat <obj> member of political party <subj> Eduardo Frei Montalva <obj> father <triplet> Eduardo Frei Montalva <subj> Christian Democrat <obj> member of political party <subj> Eduardo Frei Ruiz-Tagle <obj> child