Complex sentence: Originally "de Volkskrant" was a Roman Catholic newspaper, closely linked to the Catholic People's Party and the catholic pillar but it became a left-wing newspaper in the 1960s.
Split into simpler sentences: Originally "de Volkskrant" was a Roman Catholic newspaper, closely linked to the Catholic People's Party and the catholic pillar. Sommer, Martin "Zelfbewust op zoek" in de Volkskrant 23 August 2006 It became a left-wing newspaper in the 1960s.