Generate a correctly punctuated version of the following text: Series 3839 was introduced in 1978 and comprised low and highback lounge chairs and sofas The series was continually updated to comply with the increasing demands of the contract sector Passengers who have travelled through Copenhagen Airport over the years are probably acquainted with the series
Series 38/39 was introduced in 1978 and comprised low and high-back lounge chairs and sofas. The series was continually updated to comply with the increasing demands of the contract sector. Passengers who have travelled through Copenhagen Airport over the years are probably acquainted with the series.