In this task, you will be presented with a context passage, a question about that paragraph, and a possible answer to that question. The task is to check the validity of the answer. Answer with "Yes" or "No".

The Golden Heian Era: The geomancers in 794 decided that Heian-kyo (modern Kyoto) would be an auspicious site for the imperial family. It was indeed — until 1869. Grants of tax-free land over the years had been made to Buddhist temples and members of the court aristocracy. The most powerful families thus carved out for themselves whole regions that were to become the fiefdoms of Japanese feudalism. By the end of the eighth century the clans had created a hierarchy of shiki, or rights, from the highest to the lowest ranks of society. The aristocrat or court patron lent his prestige to a powerful provincial proprietor, who employed a competent estate-manager to oversee smallholders, who in turn worked their farms with dependent laborers. This elaborate structure of interdependent rights and obligations was to serve Japanese society right into the 20th century. Meanwhile, Heian court life blossomed in an effusion of aesthetic expression. Princes and princesses judged the merits of birds, insects, flowers, roots, or seashells. Literary party games held in ornate palace gardens required each guest to compose a small poem as his wine cup floated toward him along a miniature winding channel of water. Expeditions were organized to the best viewing points for the first spring cherry blossoms, and special pavilions were built to watch the rising of the full moon. Every gesture, from the most banal opening of an umbrella to the sublimest act of lovemaking, had its appropriate ceremonial. Conversation often took the form of elegant exchanges of improvised verse. The changing role of Chinese culture in Japanese life was epitomized in the language itself. In the absence of an indigenous alphabet, Japanese scholars had with the greatest difficulty tried to adapt the complex ideograms of monosyllabic Chinese to the essentially polysyllabic Japanese. Thus developed the katakana system used as a vehicle for writing Buddhist names and concepts. After rival Fujiwara factions had been struggling for years to gain control of the imperial throne, they turned to the Taira and Minamoto armies in 1156 to wage the four-year war that heralded the end of the golden age of the Heian court. The Taira, controlling the region along the Inland Sea, defeated the Minamoto armies based in the Kanto province east of the capital. <sep>Who invaded Kyoto and what was the outcome?<sep>Japanese scholars
No

After what seemed an eternity to Tibo, they arrived at the mouth of a cave between two rocky hills. The opening was low and narrow. A few saplings bound together with strips of rawhide closed it against stray beasts. Bukawai removed the primitive door and pushed Tibo within. The hyenas, snarling, rushed past him and were lost to view in the blackness of the interior. Bukawai replaced the saplings and seizing Tibo roughly by the arm, dragged him along a narrow, rocky passage. The floor was comparatively smooth, for the dirt which lay thick upon it had been trodden and tramped by many feet until few inequalities remained. The passage was tortuous, and as it was very dark and the walls rough and rocky, Tibo was scratched and bruised from the many bumps he received. Bukawai walked as rapidly through the winding gallery as one would traverse a familiar lane by daylight. He knew every twist and turn as a mother knows the face of her child, and he seemed to be in a hurry. He jerked poor little Tibo possibly a trifle more ruthlessly than necessary even at the pace Bukawai set; but the old witch-doctor, an outcast from the society of man, diseased, shunned, hated, feared, was far from possessing an angelic temper. Nature had given him few of the kindlier characteristics of man, and these few Fate had eradicated entirely. Shrewd, cunning, cruel, vindictive, was Bukawai, the witch-doctor. <sep>Who knew every twist and turn of the gallery?<sep>Bukawai
Yes

The day was just breaking, as I left the tower; though it was still too dark in the house to be able to see without a light, and I took one of the study candles with me on my 'round.  By the time I had finished the ground floor, the daylight was creeping in, wanly, through the barred windows.  My search had shown me nothing fresh.  Everything appeared to be in order, and I was on the point of extinguishing my candle, when the thought suggested itself to me to have another glance 'round the cellars.  I had not, if I remember rightly, been into them since my hasty search on the evening of the attack.  For, perhaps, the half of a minute, I hesitated.  I would have been very willing to forego the task--as, indeed, I am inclined to think any man well might--for of all the great, awe-inspiring rooms in this house, the cellars are the hugest and weirdest.  Great, gloomy caverns of places, unlit by any ray of daylight.  Yet, I would not shirk the work.  I felt that to do so would smack of sheer cowardice.  Besides, as I reassured myself, the cellars were really the most unlikely places in which to come across anything dangerous; considering that they can be entered, only through a heavy oaken door, the key of which, I carry always on my person. <sep>What would smack of sheer cowardice?<sep>To not do rounds of the ground floor

No

