Four men dressed in Chicago Cubs shirts are walking while wearing brown bags over their heads that spell out "C-U-B-S."
The four men are wearing Chicago Cubs shirts.
To be dressed in shirts means to be wearing those shirts.
exists e1 e4 e2 e3 s1 s2 x1 x2 x3 x4 x5 x6 x7 x8 x9.(while(e2,e4) & Theme(e4,x6) & Actor(e4,x1) & v_wear(e4) & over(x6,x7) & a_out(s2) & Manner(e3,s2) & Theme(e3,x9) & Actor(e3,x8) & v_spell(e3) & n_c-u-b-(x9) & (x7 = x8) & n_head(x7) & of(x7,x1) & n_thing(x1) & n_bag(x6) & a_brown(s1) & Theme(s1,x6) & Actor(e2,x1) & v_walk(e2) & in(e1,x3) & n_shirt(x3) & (x3 = x5) & ne_geo_cubs(x5) & (x3 = x4) & ne_geo_chicago(x4) & Theme(e1,x2) & v_dress(e1) & (x1 = x2) & n_man(x1) & card_eq_4(x1))
exists e1 x1 x2 x3 x4.(n_man(x1) & card_eq_4(x1) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_shirt(x2) & (x2 = x4) & ne_org_cubs(x4) & (x2 = x3) & ne_org_chicago(x3))