Complex sentence: Marv, knowing the cops will be waiting for him to re-surface, swims into a giant pipe and surfaces in the sewers, climbs out through a manhole and sneaks through the city, avoiding cops, until he reaches Lucille, his parole officer's apartment.
Split into simpler sentences: Marv, knowing the cops will be waiting for him to re-surface, swims into a giant pipe and surfaces in the sewers. He climbs out through a manhole and sneaks through the city, avoiding cops, until he reaches Lucille, his parole officer's apartment.