Complex sentence: In 1988 George Yerich bought out John Gruyich's ownership share of the Skylon for $13 million cash, however Milicent Gruyich continues to own the land underneath the Skylon.
Split into simpler sentences: In 1988 George Yerich bought out John Gruyich's ownership share of the Skylon for $13 million cash. However, Milicent Gruyich continues to own the land underneath the Skylon.