Homer and Marge have been married for five years. When they married Homer owned a yacht that he used as a source of income by chartering the yacht for private fancy parties. After their marriage homer and Marge build a yacht charter business by adding two additional yachts and putting energy and effort into building the business. On divorce homer claims that the original yacht is his as it was separate property when they married. Is homer correct and why? Under what legal principle will the court divide the yacht charter business?