Problem: The inhabited history of the Las Vegas Valley stretches to 23,000 b.c. , when much of the area was covered by a prehistoric lake. During this period, the indigenous people lived in caves, hunting the mammals that gathered at the shoreline. The landscape of the valley changed dramatically over the next 200 centuries. The glaciers feeding the lake melted away and the lake evaporated. Fossils tell an obscure story of man's slow and sporadic development. Around 3000 b.c. , native Archaic Indians began to develop a lasting hunting and gathering culture. By this time, the valley was in much the same geographic state as it exists in today, with one exceptionthe presence of artesian springs that bubbled to the surface in several areas. These springs fed a network of streams draining through the Las Vegas Wash to the Colorado River. The areas surrounding the springs were desert oases: sprawling collections of grasses, trees, and wildlife. Many springs lay in areas that would eventually become the center of the modern Las Vegas metropolis. For about 4000 years, the Archaics thrived in a culture that included many signs of early civilization. Signs of even more advancement appeared halfway through the first millennium a.d. , when the Anasazi Indians inhabited the valley. Far more progressive than the Archaics, the Anasazi utilized such formal agricultural techniques as irrigation to assist their harvest. This permitted the Anasazi to achieve a benchmark of advanced societythe ability to live in permanent shelters year-round without need to follow wildlife. Mysteriously, the Anasazi vanished from the valley around a.d.

Question: "Why did the prehistoric lake disappear from the Las Vegas Valley?"

Answer: "The ice age started"

OPTIONS:
- no
- yes
Answer: no

Problem: Miss Anderson dined out, and preferred to suppose that she had no time to think until she was on her way home along the empty road round Jakko at eleven o'clock that night. Then it pleased her to get out of her rickshaw and walk. There was an opulent moon, the vast hills curving down to the plains were all grey and silvery, and the deodars overhead fretted the road with dramatic shadows. About her hung the great stillness in a mighty loneliness in which little Simla is set, and it freed her from what had happened, so that she could look at it and cry out. She actually did speak, pausing in the little pavilion on the road where the nursemaids gather in the daytime, but very low, so that her words fell round her even in that silence, and hardly a deodar was aware. 'I will not go now,' she said. 'I will stay and realize that he is another woman's husband. That should cure me if anything will--to see him surrounded by the commonplaces of married life, that kind of married life. I will stay till she comes and a fortnight after. Besides, I want to see her--I want to see how far she comes short.' She was silent for a moment, and the moonlight played upon her smile of quiet triumph. 'He cares too,' she said; 'he cares too, but he doesn't know it, and I promise you one thing, Madeline Anderson, you won't help him to find out. And in five weeks I will go away and leave my love where I found it--on a mountaintop in the middle of Asia!'

Question: "What type of moon was visible at eleven o'clock?"

Answer: "A cresten moon"

OPTIONS:
- no
- yes
Answer: no

Problem: An archaeological party explore some caverns underground . Dr. Campbell and Dr. Hughes are the two leaders of the archaeological expedition , and get separated . While Dr. Hughes finds an alien corpse with a fossilized diamond , Dr. Campbell finds hieroglyphics at the cost of the party except for Hughes and himself . Two years later , Campbell and his assistant Holly are digging up the bones of Yonggary , a gargantuan dinosaur 50 times the size of a tyrannosaurus rex . Out of nowhere , people slowly are being killed around the site . While Holly is working Dr. Hughes , who has been legally dead for 2 years , goes to Holly and tells her to stop the dig . Dr. Campbell comes into the tent and sends Dr. Hughes off . Holly quits the expedition when another '' Accident '' occurs . In the town bar , Dr. Hughes finds Holly and takes her back to her Hotel room to tell her why he thinks the bones of the Dinosaur , Which he calls Yonggary , are going to bring the end of the world . After explaining , Holly and Hughes go to the site to stop Campbell but it is too late and Aliens resurrect Yonggary . After Yonggary's first appearance , the Army comes in and takes Holly and Campbell to an army base when Yonggary is dispatched by the aliens again . The army sends choppers after Yonggary , but he destroys them . Yonggary is then sent to the city and does some damage , where some jets attack him . Then Yonggary is transported to a power plant where he is attacked by rocket pack soldiers . During the fight , Hughes and Holly find out that the diamond on Yonggary's forehead is the device giving the aliens control of Yonggary .

Question: "What was the "accident" that caused Holly to quit the expedition?"

Answer: "Someone was killed"

OPTIONS:
- no
- yes
Answer:
yes