which silver medalist of the taekwondo at the 2016 summer olympics – men's +80 kg was also the flagbearer of the niger at the 2016 summer olympics
SELECT DISTINCT var_uri where brack_open dbr_Taekwondo_at_the_2016_Summer_Olympics_–_Men's_+80_kg dbo_silverMedalist var_uri sep_dot dbr_Niger_at_the_2016_Summer_Olympics dbp_flagbearer var_uri brack_close