Complex sentence: Wasa 30 is a Swedish keelboat from Wasa Yachts AB, that was introduced in 1979, following the 43 feet Wasa 55.
Split into simpler sentences: Wasa 30 is a Swedish keelboat from Wasa Yachts AB, that was introduced in 1979. The Wasa 30 is the second design from Wasa Yachts, following the 43 feet Wasa 55.