A set of keys in the lock of an opened box on an outside pole.
A security device on an opened container outdoors.
A key is considered a security device and if a box is on a pole outside, it is considered a container outdoors.
exists e1 s1 x1 x2 x3 x4 x5.(n_lock(x3) & a_topic(x1) & of(x1,x2) & in(x2,x3) & of(x3,x4) & on(x4,x5) & n_pole(x5) & a_outside(s1) & Theme(s1,x5) & n_box(x4) & Theme(e1,x4) & v_open(e1) & n_key(x2) & n_set(x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(x1,x3) & n_outdoors(x3) & of(x3,x4) & n_container(x4) & Theme(e1,x3) & v_open(e1) & n_device(x1) & of(x1,x2) & n_security(x2))