Complex sentence: The Gyeongbu Line ("Gyeongbuseon") is the most important railway line in South Korea and one of the oldest, constructed by Japan in 1905, connecting Seoul to Suwon, Daejeon, Daegu, and Busan.
Split into simpler sentences: The Gyeongbu Line ("Gyeongbuseon") is the most important railway line in South Korea and one of the oldest. It was constructed by Japan in 1905, connecting Seoul to Suwon, Daejeon, Daegu, and Busan.