What are the names of the four swords in the tomb of the condor heroes?

The first sword: the cool breeze protects the wind, the cold light shines and is invincible. It is used by the weak crown to compete with the "river back package".

The second sword: Butterfly soft sword, used before the age of thirty.

The third sword: dark iron epee, heavy and without front, with a semicircular tip. Before the age of forty, dominate the world.

Fourth Sword: wood blade, understand the true meaning of fencing. Both bamboo and sand can be swords, so there is a way to win without moving.