Royal Dutch Shell (Xetra: R6C1.DE - news ) and BG Group (LSE: BG.L - news ) were both sharply higher after Shell (LSE: RDSB.L - news ) 's second-quarter results beat expectations.
Take context from the input text and decide on the accurate relationship between 'BG Group' and 'Royal Dutch Shell' from the options provided.
Options: headquarters location, director/manager, currency, parent organization