30 Points $A, B, C, D, E$ in space, no four points are coplanar, and the distance between any two points is not equal. For each spatial quadrilateral formed by any four of these points, the shortest side is colored black. After all coloring is done, the number of black segments originating from a point is called the hope number of that point. The maximum value of the hope number for each point is $\qquad$
30 3. Among the four lines drawn from each point, the longest one will definitely not be colored black, because the spatial quadrilateral containing it must also contain two lines drawn from this point, and the other one is shorter. Therefore, the hope number $\leqslant 3$.
On the other hand, the lengths noted in Figure 7 indicate that the hope number of point $A$ is 3.