A group of people, many of them wearing pink signs on their backs, stand in front of stage featuring a skull and cross-bone flag.
The group is standing by the stage.
One would already know that "stand in front of stage" would mean that the group of people are "standing by the stage."
exists e1 e2 s1 s2 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12 x13.(a_topic(x1) & rel(x1,x3) & rel(x3,x7) & in(x7,x8) & of(x8,x9) & Theme(e2,x11) & Actor(e2,x10) & v_feature(e2) & subset_of(x13,x11) & n_flag(x13) & a_cross-bone(s2) & Theme(s2,x13) & subset_of(x12,x11) & n_skull(x12) & (x9 = x10) & n_stage(x9) & n_front(x8) & n_stand(x7) & Theme(e1,x5) & Actor(e1,x4) & v_wear(e1) & on(x5,x6) & n_back(x6) & of(x6,x1) & n_thing(x1) & n_thing(x1) & n_sign(x5) & a_pink(s1) & Theme(s1,x5) & (x3 = x4) & of(x3,x1) & n_quantity(x3) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 x1 x2.(n_stage(x2) & n_group(x1) & by(e1,x2) & Actor(e1,x1) & v_stand(e1))