A man suspiciously eyes the camera while eating.
The man is looking at a security camera.
A camera is not necessarily a security camera by default.
exists e2 e1 s1 x1 x2.(n_camera(x2) & while(e1,e2) & Actor(e2,x1) & v_eat(e2) & Time(e1,x2) & a_suspiciously(s1) & Manner(e1,s1) & Actor(e1,x1) & v_eye(e1) & n_man(x1))
exists e1 x1 x2 x3.(n_man(x1) & at(e1,x2) & n_camera(x2) & of(x2,x3) & n_security(x3) & Actor(e1,x1) & v_look(e1))