Input: Jenny was a 13 year old girl with blond hair and blue eyes. She had gotten out of her last day of school and was free for the summer. Two of her friends were going to the nearby beach to do some swimming and enjoy the sun. Jenny went with them and when they got there the beach was very full and there were people everywhere. They changed into their bathing suits and went to the water. The water was very cold. They chose not swim and walked to the sand. Then they laid down on some towels and enjoyed the sun. After several hours Jenny and her friends fell asleep. They woke up and the sun was beginning to set. When Jenny sat up she found that it was painful to touch her skin. When she looked down she saw that she had a very bad sunburn. Her friends were also very badly sunburned so they went home. Jenny's mother gave her a cream to put on the sunburn. Afterwards she felt a lot better and went to sleep.
"What did Jenny and her friends enjoy when they walked to the sand?" is "The sun"?

OPTIONS:
- no
- yes
Output: yes
Input: Thursday, and Mr. Strong arrived with the inevitableness of dreaded events. Bambi felt convinced that his coming meant the premature death of her new-born career, so, naturally, she was prepared for grief. An element of amusement was added, however, by Jarvis's astonishing behaviour. Ever since the first mention of Mr. Strong's name he had shown unmistakable signs of dislike for that gentleman. 'It was the most remarkable revelation of his strange character. Having totally ignored Bambi himself, it distressed him to think of any other man being attracted by her. His references to Mr. Strong's coming were many and satirical. This display of manly inconsistency was nuts and ale to Bambi. She wondered how much Mr. Strong would play up, and she decided to give Jarvis Jocelyn an uncomfortable hour. She herself was an adept in amatory science, but she was a trifle unsure of Mr. Strong. However, she remembered a certain twinkle in his eye that augured well. Because it was necessary to enlighten him as to the situation in advance, she arrayed herself most carefully to go and meet him. She encountered Jarvis on the stairs. He inspected her charming self, in a frock the colour of spring green leaves, topped by a crocus-coloured hat, like a flower. She deliberately pranced before him.
"What day did Mr. Strong arrive and who dreaded the encounter?" is "Mr. Strong arrive on Thursday, Jarvis and Bambi dreaded it"?

OPTIONS:
- no
- yes
Output: yes
Input: 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.
"Why did the prehistoric lake disappear from the Las Vegas Valley?" is "The glaciers melted"?

OPTIONS:
- no
- yes
Output:
yes