Complex sentence: While Blacky leaves to urinate, Marko attempts to woo Natalija for himself, belittling Blacky's low-class electrician job and exalting his own status as a "rational intellectual".
Split into simpler sentences: While Blacky leaves to urinate, Marko attempts to woo Natalija. He belittles Blacky's low-class electrician job and exalts his own status as a "rational intellectual".