The linear arrangement that K must be played before L. L must be played before M is; K → L → M.
In a linear arrangement, we represent each event as a point, and we connect them with arrows to show the order in which they occur.
With the given conditions, we can draw the following linear arrangement as:
K → L → M
Here, K is played before L, and L is played before M.
The arrows indicate the direction of the events, with K being played first, followed by L, and then M.