Which one is not from the calligraphy "Eight Methods of Yong Zi"

Eight methods of eternal words: side, strangulation, crossbow, chisel, strategy, grazing, pecking and licking.

The point (1) is an edge (such as the upside-down edge of a bird);

Eight methods of eternal discourse

(2) Straddle (such as the reins of a horse);

③ Vertical crossbow (force also);

(4) Hook is hook (jumping posture, jumping together);

(5) make strategies (such as riding a horse with a whip);

(6) skimming (for example, skimming with a grid);

(7) pecking if the head is short (such as pecking by birds);

(8) Si is a crack (crack is the voice of philosophy, crack is a crack, and the pen tip is also open.