A man in a blue shirt and jeans stands behind a sign that says "Mark' Mom' Finley".
A man with a sign is waiting for someone.
Stands behind a sign does not mean waiting for someone.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5 x6 x7 x8 x9.(ne_per_finley(x9) & a_''(s2) & Theme(s2,x9) & of(x9,x8) & ne_per_mom(x8) & of(x8,x7) & ne_per_mark(x7) & behind(e1,x5) & Theme(e2,x9) & Actor(e2,x6) & v_say(e2) & (x5 = x6) & n_sign(x5) & Actor(e1,x1) & v_stand(e1) & in(x1,x2) & subset_of(x4,x2) & n_jeans(x4) & subset_of(x3,x2) & n_shirt(x3) & a_blue(s1) & Theme(s1,x3) & n_man(x1))
exists e1 x1 x2 x3.(for(e1,x3) & n_person(x3) & Actor(e1,x1) & v_wait(e1) & with(x1,x2) & n_sign(x2) & n_man(x1))