In the context of the input sentence, determine the relationship between 'MBDA' and 'Airbus Group'.
Options: headquarters location, employer, owned by, manufacturer

Fri, Jul 31, 2015, 12:23 BST - UK Markets close in 4 hrs 7 mins Airbus Group interested in boosting MBDA stake Reuters - UK Focus – 18 minutes ago 64.92 +2.51
owned by