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".

Ex Input:
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 are great, gloomy caverns of places?<sep>Sheds

Ex Output:
No

Ex Input:
For thousands of years, people have found fossils. The fossils caused curiosity about Earths past. How did these organisms live? What type of world did they live in? Fossils can tell us a lot about Earths history. In ancient times, fossils inspired myths and stories. These stories included tales of monsters and other incredible creatures. What type of creature do you know that could inspire such stories? Of course, dinosaur fossils were once mistaken for dragons bones. Two thousand years ago, people discovered fossils in China. At the time, they were thought to be dragon bones. We know now that these were not bones, but fossils. So what is the difference? <sep>How long ago and in what country were the first documented fossils found?<sep>2000 years ago in China

Ex Output:
Yes

Ex Input:
Surviving being shot and stabbed at the end of the previous film , the stepfather has been institutionalized in Puget Sound , Washington since , spending his time building model houses in the workshop . Assigned a new doctor named Joseph Danvers the stepfather begins confiding in him to gain his trust , ultimately murdering the doctor during a session by stabbing him in the neck with a blade smuggled out of the workshop . After killing Danvers the stepfather beats a suspicious guard named Ralph Smith to death with his own nightstick with only two strikes and takes his uniform , successfully sneaking out of the sanitarium . Checking into a hotel after robbing and murdering a traveling salesman the stepfather alters his appearance , takes the name Doctor Gene F. Clifford from the newspaper obituaries and travels to Palm Meadows , Los Angeles after seeing an ad for it on an episode of Dream House . Gene arrives in Palm Meadows and meets real estate agent Carol Grayland and leases a house just across the street from her and her son Todd . During a session with the wives of the neighborhood , Gene learns Carol 's dentist husband , Philip had absconded with his mistress the previous year . Gene begins courting Carol , eventually winning over her and Todd . Gene 's plan to marry Carol is soon complicated when Phil returns , wanting to reconcile with his wife . Needing Phil out of the way , Gene persuades Carol to send Phil over for a meeting , during which Gene kills him with a broken bottle , covering up Phil 's disappearance afterward by arranging it so that it looks as though he simply ran off again . <sep>How many people does the stepfather kill in the Puget Sound institution?<sep>Three

Ex Output:
No