A military unit in a parade.
The parade moves along
A military unit in a parade implies that there is some sort of parade.
exists s1 x1 x2.(a_topic(x1) & in(x1,x2) & n_parade(x2) & n_unit(x1) & a_military(s1) & Theme(s1,x1))
exists s1 s2 x1 x2.(n_move(x1) & a_parade(s1) & Theme(s1,x1) & a_topic(x1) & Theme(s2,x2) & a_along(s2) & (x1 = x2))