A lone performer or lecturer takes the stage in an urban setting, for a crowd of about 30 spectators.
A band is performing on stage.
A lone performer does not constitute a band
exists e1 s1 s2 x1 x2 x3 x4 x5.(n_stage(x2) & for(e1,x4) & of(x4,x5) & n_spectator(x5) & n_date(x5) & a_date_day_30(x5) & a_date_day_30(x5) & r_about(x5) & n_crowd(x4) & in(e1,x3) & n_setting(x3) & a_urban(s2) & Theme(s2,x3) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & (n_performer(x1) | n_lecturer(x1)) & a_lone(s1) & Theme(s1,x1))
exists e1 x1 x2.(on(e1,x2) & n_stage(x2) & Actor(e1,x1) & v_perform(e1) & n_band(x1))