One black female and one white female plus three white males, all wearing forms of black, in front of a concrete stair structure with other people sitting on the stairs.
Some wear black shirts.
People wearing all wearing forms of black are not necessarily black shirts.
exists s1 s2 s3 s4 x1 x2 x3 x4 x11.(n_people(x11) & a_topic(s1) & subset_of(x4,s1) & all x5 e1.((n_form(x5) & Actor(e1,x5) & v_wear(e1)) -> exists e2 s5 x6 x7 x8 x9 x10 x12.(rel(x4,x5) & in(x5,x7) & with(x7,x10) & on(e2,x9) & n_stair(x9) & n_stair(x9) & Actor(e2,x12) & v_sit(e2) & (x10 = x12) & -(x10 = x11) & n_people(x10) & of(x7,x8) & n_structure(x8) & of(x8,x9) & a_concrete(s5) & Theme(s5,x8) & n_front(x7) & of(x5,x6) & n_black(x6))) & n_male(x4) & a_white(s4) & Theme(s4,x4) & card_eq_3(x4) & subset_of(x1,s1) & n_female(x3) & a_white(s3) & Theme(s3,x3) & card_eq_1(x3) & n_female(x2) & a_black(s2) & Theme(s2,x2) & card_eq_1(x2) & subset_of(x3,x1) & subset_of(x2,x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_shirt(x2) & a_black(s1) & Theme(s1,x2) & n_thing(x1))