Five men, uniformly dressed in white shirts, tie and black slacks converse at the back of an open van.
The men are part of the same group.
Just because men are wearing the same thing does not mean that they are part of the same group.
exists e1 e2 s1 s2 s3 s4 x1 x2 x3 x4 x5 x6 x7 x8.(n_back(x7) & at(e2,x7) & of(x7,x8) & n_van(x8) & a_open(s4) & Theme(s4,x8) & Actor(e2,x1) & v_converse(e2) & a_uniformly(s3) & Manner(e1,s3) & in(e1,x3) & rel(x3,x4) & subset_of(x6,x4) & n_slacks(x6) & a_black(s2) & Theme(s2,x6) & subset_of(x5,x4) & n_tie(x5) & n_shirt(x3) & a_white(s1) & Theme(s1,x3) & Theme(e1,x2) & v_dress(e1) & (x1 = x2) & n_man(x1) & card_eq_5(x1))
exists p1 s1 x1 x3.(n_group(x3) & a_same(s1) & Theme(s1,x3) & n_man(x1) & exists x2.((x1 = x2) & of(x2,x3) & n_part(x2)))