which silver medalist of the athletics at the 1968 summer olympics – men's 10 was also the flagbearer of the ethiopia at the 1972 summer olympics
SELECT DISTINCT var_uri where brack_open dbr_Athletics_at_the_1968_Summer_Olympics_–_Men's_10,000_metres dbo_silverMedalist var_uri sep_dot dbr_Ethiopia_at_the_1972_Summer_Olympics dbp_flagbearer var_uri brack_close