Complex sentence: The province is named after former king Norodom Sihanouk and the city of Sihanoukville grew up around the construction of the Sihanoukville Port, which began in June 1955.
Split into simpler sentences: The province is named after former king Norodom Sihanouk. The city of Sihanoukville evolved alongside the construction of the Sihanoukville Port, which commenced in June 1955.