what is the flagbearer of the mexico at the 2007 pan american games and mexico at the 2007 pan american games
SELECT DISTINCT var_uri where brack_open dbr_Mexico_at_the_2007_Pan_American_Games dbp_flagbearer var_uri sep_dot dbr_Mexico_at_the_2007_Pan_American_Games dbp_flagbearer var_uri brack_close