list all the tenants of the stadium where the wwf swimming at the 2012 summer olympics – men's 400 metre individual medley took place .
SELECT DISTINCT var_uri where brack_open dbr_Swimming_at_the_2012_Summer_Olympics_–_Men's_400_metre_individual_medley dbp_venue var_x sep_dot var_x dbo_tenant var_uri brack_close