Detailed Instructions: From the given sentence, extract the phrase (often noun or verb) that carries the given relationship. The generated phrase should be present in the sentence.
Q: Given Relationship: 'be owner of', Sentence: 'Their News : Federal regulators have accused billionaire Dallas Mavericks owner Mark Cuban of insider trading for allegedly using confidential information on a stock sale to avoid more than $ 750,000 in losses .'
A:
owner