Protesters are holding signs in Spanish.
People holding signs.
The protesters would be people.
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_hold(e1) & in(x2,x3) & n_spanish(x3) & n_sign(x2) & n_protester(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_hold(e1) & n_sign(x3) & (x1 = x2) & n_people(x1))