Refer to the input text as context and select the correct relationship between 'SK Group' and 'SK' from the available options.
Options: currency, platform, member of, owned by

5 Questions About SK Group The Wall Street Journal – 1 hour 52 minutes ago Print Chey Tae-won, chairman South Korea’s third-largest conglomerate, SK Group, is free to resume his duties now that an Aug. 13 pardon by President Park Geun-hye has brought an early end to his four-year prison sentence.
owned by