list the launch site of the rockets whose one of the launch site has been vostochny cosmodrome site 1s ?
SELECT DISTINCT var_uri where brack_open var_x dbo_launchSite dbr_Vostochny_Cosmodrome_Site_1S sep_dot var_x dbo_launchSite var_uri sep_dot var_x a dbo_Rocket brack_close