what is the flagbearer of the liberia at the 2016 summer olympics and liberia at the 2016 summer olympics
SELECT DISTINCT var_uri where brack_open dbr_Liberia_at_the_2016_Summer_Olympics dbp_flagbearer var_uri sep_dot dbr_Liberia_at_the_2016_Summer_Olympics dbp_flagbearer var_uri brack_close