Complex sentence: Huonville is the seat of the municipality of the Huon Valley, the most southerly Council area in Australia and has expanded since the 1980s as the commercial centre of the Huon Valley.
Split into simpler sentences: Huonville is the seat of the municipality of the Huon Valley, the most southerly Council area in Australia. Huonville has expanded since the 1980s as the commercial centre of the Huon Valley.