Complex sentence: The earliest churches were built when builders were familiar with the form of the Roman basilica, a public building for business blobfishs rock central area, with aisles separated by columns, and with windows near the ceiling.
Split into simpler sentences: The earliest churches were built when builders were familiar with the form of the Roman basilica, a public building for business transactions. It had a wide central area, with aisles separated by columns, and with windows near the ceiling.