Context: A narrative voice explains that in the Shun Chi years of the Ching Dynasty, the Emperor of China had fallen gravely ill. In pursuit of a legendary rose, which blossomed once every twenty years and which supposedly has the power to restore life to the nearly dead, an envoy was sent to Mount Shin Fung, where the flower was to be found. This envoy, and his three companions, arrive at the mountain, where a man can be found standing watch over a flower that is nearly blossoming in the snow. The envoy bows and addresses this man as Master Cho of Wu Tang, but he doesn't respond. They explain their mission, which prompts him to ask about the time -- or rather, to ask what year it is. The envoy answers that it is the tenth year since the establishment of the Ching Dynasty. Master Cho expresses surprise that it is truly that long, and tells them that they can leave. The envoy attempts to bribe him with a reward, and is angrily rebuked. His three companions arise and leap to attack Master Cho, who leaps up and defeats them easily. The envoy himself attacks, and lasts somewhat longer before he is knocked back. Bleeding heavily, the envoy asks who could be so important that Master Cho would save the flower for them instead of for the Emperor, and then exsanguinates messily. Master Cho resumes his vigil, and the narrative voice (which is his voice) explains that he is saving the flower for a woman, for whom he has been waiting here for a decade. He wonders if she knows what he's doing ...Over scenes of a blacksmith's workshop, Master Cho (or, to use the name of his youth, Cho Yi Hang) explains that he was the student of Master Tzu Yang of Wu Tang, the Joint Chief of the Eight Big Clans of China, which are the only ones whom the Master considers to be worthy of the name. The Master advises him to always remember that good and evil were like oil and water; this is a familiar lesson to Yi Hang, who is more interested in playing with the grasshopper he's found in his hand. The Master then asks whether Yi Hang has mastered the martial arts technique that he taught him, and Yi Hang claims to have perfected it. Master Tzu Yang turns to look at him, sees him playing with the grasshopper, and frowns. He picks up a freshly forged sword and throws it at Yi Hang, who is startled enough to swallow the grasshopper, but manages to catch the sword. He begins to demonstrate the technique in question, which is so effective a defense that it can even deflect falling cherry petals from striking him -- though quite a few end up stuck to the end of the sword. Master Tzu Yang flings a stick at him, and Yi Hang leaps into the air and slices through it, right down the middle of the stick. Yi Hang then, rather cheekily, asks for a few days off since he's doing so well. The Master replies that if Yi Hang hopes to become the Joint Chief some day, he must always practice. In fact, Yi Hang doesn't really have any ambitions of that sort, and is content to do a few good deeds now and then.One such good deed gets him into trouble. At night, carrying a lamb that he rescued from some bad men, he finds himself lost. The narrator explains that there were two things that scared Yi Hang -- thunder and lightning, and wolves -- and he can hear wolves howling not far away, and turns to see them. He sets the lamb down, telling it that he saved the lamb's life, and now it is time for the lamb to return the favor, and so runs off ... but after looking back, he decides that he can't just leave the lamb to the slaughter, and runs back to pick it up as he flees from the wolves. He calls out for help from anyone, before he reaches a dead end. Clutching the sheep to himself, he cries that he doesn't want to die ... and then hears a flute being 
 Question: How many major orthodox martial arts sects forms the collation of army?
Output: eight