Complex sentence: For the next two months, deportations from Warsaw in two pendulum trains continued on a daily basis ranging from about 4,000 to 7,000 victims per transport, the first in the early morning and the second in the mid-afternoon.
Split into simpler sentences: For the next two months, deportations from Warsaw continued on a daily basis via two pendulum trains carrying about 4,000 to 7,000 victims each. The first train came in the early morning and the second in the mid-afternoon.