<image> As shown in the figure, there is a spinning wheel divided into 4 equal sectors, colored red, green, and yellow. The pointer is fixed, and after spinning the wheel and letting it stop freely, one of the sectors will exactly stop at the position indicated by the pointer (if the pointer points to the intersection of two sectors, consider it pointing to the sector on the right). Determine the probability of the following events:
(1) The pointer points to green;
(2) The pointer points to red or yellow;
(3) The pointer does not point to red.