An older man wearing a blue shirt is sitting.
A man is seated. He is wearing a blue shirt.
A man wearing a shirt is sitting, or seated, depending on how you want to say it.
exists e1 e2 s1 s2 x1 x2 x3.(Actor(e2,x1) & v_sit(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_shirt(x3) & a_blue(s2) & Theme(s2,x3) & (x1 = x2) & n_man(x1) & r_more(s1) & a_older(s1) & Theme(s1,x1))
exists e1 e2 s1 x1 x2.(Theme(e2,x2) & Actor(e2,x1) & v_wear(e2) & n_shirt(x2) & a_blue(s1) & Theme(s1,x2) & n_male(x1) & Theme(e1,x1) & v_seat(e1) & n_man(x1))