which silver medalist of the shooting at the 2012 summer olympics – men's 50 metre rifle prone was also the flagbearer of the belgium at the 2015 european games
SELECT DISTINCT var_uri where brack_open dbr_Shooting_at_the_2012_Summer_Olympics_–_Men's_50_metre_rifle_prone dbo_silverMedalist var_uri sep_dot dbr_Belgium_at_the_2015_European_Games dbp_flagbearer var_uri brack_close