performers on stage using a sheet as a prop
There are performers on a stage.
If the performers are on stage then they are on stage.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x3) & v_use(e1) & as(x4,x5) & n_prop(x5) & n_sheet(x4) & (x1 = x3) & on(x1,x2) & n_stage(x2) & n_performer(x1))
exists p1 x1 x2 x3.((x1 = x2) & on(x2,x3) & n_stage(x3) & n_performer(x2))