Utilize the input text as a context reference, choose the right relationship between 'BG Group' and 'Royal Dutch Shell' from the options.
Options: position held, distribution format, parent organization, owner of

Energy companies took the most points off the index, with Royal Dutch Shell (Xetra: R6C1.DE - news ) and BG Group (LSE: BG.L - news ) closing down 3 and 1.8 percent respectively.
parent organization