Complex sentence: "Drugie śniadanie" is eaten around 10.00 o'clock and is a light snack, usually consisting of sandwiches and/or salad or a thin soup.
Split into simpler sentences: Drugie śniadanie is eaten around 10.00 o'clock and is not a main meal. It is a light snack, usually consisting of sandwiches and/or salad or a thin soup.