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

(Reuters) - Royal Dutch Shell (RDSa.L), which is all set to acquire rival BG Group Plc (BG.L), may cut its capital expenditure for the year by several billion dollars from the previously announced $33 billion figure (21 billion pounds), the Financial Times reported on Sunday, citing sources.
parent organization