how many teams have used the stadium which hosted the short track speed skating at the 1992 winter olympics – women's 500 metres ?
SELECT DISTINCT COUNT attr_open var_uri attr_close where brack_open dbr_Short_track_speed_skating_at_the_1992_Winter_Olympics_–_Women's_500_metres dbp_venue var_x sep_dot var_x dbo_tenant var_uri sep_dot var_x a dbo_Stadium brack_close