Complex sentence: The station has two side platforms flanking the suburban tracks of the Warsaw Cross-City Line used by the regional trains run by Koleje Mazowieckie and Szybka Kolej Miejska.
Split into simpler sentences: The station has two side platforms flanking the suburban tracks of the Warsaw Cross-City Line. The platforms are used by regional trains run by Koleje Mazowieckie and Szybka Kolej Miejska.