Complex sentence: In the summer of 1999 Van Benthem and his family decided to move to Spruce View, Alberta, Canada, since his Dutch farm is located in a natural preservation area and thus could not expand.
Split into simpler sentences: In the summer of 1999 Van Benthem and his family decided to move to Spruce View, Alberta, Canada. His Dutch farm is located in a natural preservation area and thus could not expand.