Complex sentence: F19 and 20 were the first two "half luggage vans" delivered to the railway, half of the carriage being occupied with three third class compartments and the other half by a luggage compartment complete with guard's look-out duckets.
Split into simpler sentences: F19 and 20 were the first two "half luggage vans" delivered to the railway. Half of the carriage being occupied with three third class compartments and the other half by a luggage compartment complete with guard's look-out duckets.