Complex sentence: In 1969, the two-lane highway linking Corinth and Patras opened in all directions and contains several interchanges, the Aigio Bypass did not opened until the 1972, its tolls were removed later on.
Split into simpler sentences: In 1969, the two-lane highway linking Corinth and Patras opened and contains several interchanges. The Aigio Bypass did not opened until 1972; its tolls were removed later on.