Children are listening to a man in a blue shirt.
Somebody who is shown is wearing something blue.
man in a blue shirt is somebody
exists e1 s1 x1 x2 x3.(to(e1,x2) & in(x2,x3) & n_shirt(x3) & a_blue(s1) & Theme(s1,x3) & n_man(x2) & Actor(e1,x1) & v_listen(e1) & n_child(x1))
exists e2 e1 s1 x1 x2 x3 x4.(Theme(e2,x3) & Actor(e2,x1) & v_wear(e2) & Theme(s1,x4) & a_blue(s1) & (x3 = x4) & n_thing(x3) & Theme(e1,x2) & v_show(e1) & (x1 = x2) & n_person(x1))