Complex sentence: The Ark was to be 300 cubits long, 50 cubits wide, and 30 cubits high, and have an opening for daylight near the top, an entrance on its side, and three decks.
Split into simpler sentences: The Ark was to be 300 cubits long, 50 cubits wide, and 30 cubits high. It was to have an opening for daylight near the top, an entrance on its side, and three decks.