Complex sentence: After the Romanian Revolution of 1989, Radu Filipescu found the Group for Social Dialog, being elected its president (in 1998), founding member of APADOR-CH, founder and president of the Association of Revolutionaries Without Privileges.
Split into simpler sentences: After the Romanian Revolution of 1989, Radu Filipescu found the Group for Social Dialog, and was elected its president in 1998. He is also a founding member of APADOR-CH, and founder and president of the Association of Revolutionaries Without Privileges.