Lick 33a presents a simplified version of the middle range (4i to 8i Third Position Blues Scale, played in an upwards direction. Lick 33b does the same, played in a downward direction. Both are simplified in that the 6i bent note is omitted, and an extra 6i (without the bending effect) substituted in its place.
Adding a rhythm pattern to the above licks makes them sound more interesting, as in Licks 33c and 33d.