A man in a white robe leading other people in a line dance of some sort.
a man leads a group in a dance
A man in a white robe is a type of man, and people are a group.
exists e1 s1 x1 x2 x3 x4 x5 x6 x7 x8.(n_people(x5) & a_topic(x1) & in(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_lead(e1) & in(x4,x6) & of(x6,x8) & n_sort(x8) & n_dance(x6) & of(x6,x7) & n_line(x7) & -(x4 = x5) & n_people(x4) & (x2 = x3) & n_robe(x2) & a_white(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_lead(e1) & in(x2,x3) & n_dance(x3) & n_group(x2) & n_man(x1))