name the company whose one of the product is rachael ray and has one of the key person as oprah winfrey ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_product dbr_Rachael_Ray_ attr_open TV_series attr_close sep_dot var_uri dbo_keyPerson dbr_Oprah_Winfrey sep_dot var_uri a dbo_Company brack_close