Complex sentence: On May 21,2005 their most successful album to date appeared, "Am Wasser gebaut" ("Built by the water", but also a term describing a very emotional person who cries easily).
Split into simpler sentences: On May 21,2005 their most successful album to date was released. The album was entitled "Am Wasser gebaut" (Literaly "Built by the water", but is also a term describing a very emotional person who cries easily).