Utilize the input text as a context reference, choose the right relationship between Hancock Prospecting and Lang Hancock from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Australia's richest person said her father Lang Hancock warned her that she would rue the day her late mother's shares in Hancock Prospecting were used for the children's benefit.

Answer: founded_by