Static electricity is like a teeter-totter. What happens if a teeter-totter is balanced? Correct! It does not move. What about when its not balanced? Yes, it will now begin to move. Charges move when they are not balanced. Charges can build up by friction. Maybe you rub your feet on a wool mat or carpet. Rubber soled shoes readily gain charges. The wool carpet easily gives up charges. The two items become unbalanced. One item has a positive charge. The other has a negative charge. The difference in charge is called static electricity. Just like the teeter-totter, something is going to move. Positive charges build up on the mat. Negative charges build up on you.

Question: "What two types of charges build up in unbalanced items?"

Response: "Positive"
OPTIONS:
- no
- yes

A: no

Problem: Comanche Indians have trapped the evil of their land in a monster made up of a mixture of other animals . The Comanche have placed a protective spear in the ground to contain the evil . A young boy pulls the spear from the ground while pocketing a rabbit foot talisman . He starts to play with the spear . A Comanche catches the boy , and startled , he runs away with the rabbit's foot . The Native American places the spear back , realizing too late that the rabbits foot is now gone . After that , white men come and start drilling for oil . Skip to current time , a divorced father , Mance Cashen , moves to the area with his new wife , baby , and his son from his first marriage , Willy ( played by ( ( Chris Miller , who is visiting . Willy notices something peculiar in the house and tries to warn his father and step-mother . They do not believe him . Willy is attacked while on a tire swing over a small water hole . The creature grabs his foot and Willy struggles , eventually getting away . He eventually befriends the local drunk , T. C. van Houten . A nice old man with some bad memories who knows something about the evil near the oil well and was in a situation similar to Willy's . In the meantime a Comanche Indian , Chief Sam John , comes to warn Mance of the evil and the need to keep it contained . Sam John informs Mance the evil was originally intended to stop the white man , but it is indiscriminate in whom it kills instead . Mance will have none of it . Willy eventually takes a spear he finds on his property to Sam John and tries to find out what is going on .

Question: "What did the boy do with the spear?"

Answer: "Pulling"

OPTIONS:
- no
- yes
Answer: yes

Question:
When land is cleared, habitats are lost. It may be cleared for agriculture. It may also be used for building new homes or businesses. Within the past 100 years, the amount of land used for agriculture has almost doubled. Land used for grazing cattle has more than doubled. Many wetlands have also been lost to agriculture. The U.S. has lost almost all the natural tall-grass prairies. Thee areas of tall thick grass have virtually disappeared. These areas of land had thick fertile soil. Their grasses had very deep root systems. These deep and thick roots reduced the amount of soil erosion. They also were home to many plants and animals. Prairies were wonderful places. They were home to colorful flowers, prairie dogs, and herds of bison. After reading the above, is "Chickens" the correct answer to the question "What types of animals did prairies contain?"? OPTIONS:
- no
- yes

Answer:
no

Input: Little is known of the earliest Stone Age inhabitants of Europe's southwestern extremity. The ancient Greeks called them the Cynetes (or Cunetes). Whatever their origins, their culture evolved under the pressure and influence of foreign forces. Among the many invading armies that settled here and contributed to nascent Portuguese culture were Phoenicians, who settled in the area around 1,000 b.c., followed by the Celts, Iberians, Greeks, and Carthaginians. But it was the Romans, who arrived late in the third century b.c., who most greatly influenced all of Iberia. They built towns, industries, roads, and bridges, developed agriculture, and bequeathed the Latin language, of which Portuguese is a direct descendant. The Romans named the southwestern province of the peninsula Lusitania, oddly enough for one of the Celtiberian tribes they defeated, and by the third century a.d. had introduced Christianity. By the beginning of the fourth century the Algarve had a bishop in place, based in Faro. But Rome had already fallen into decay, and soon hordes of northern tribesmen took over the empire. The Algarve fell to the Visigoths in the mid-fifth century. Under Moorish Rule In a.d. 711, the Moors brought powerful armies from North Africa and launched a devastating attack on the Iberian peninsula, conquering much of what would become Spain and Portugal. They imposed Islam and left an indelible influence on the countryside and the population of the Algarve. The Moorish legacy can still be seen in the form of wells and waterwheels, squat white houses, the dark complexions of the people, and in the very name given the regiontaken from Al-Gharb, which means "country of the west" (when the Moors conquered the territory, it was the most westerly in the known world). The Moors governed their Iberian kingdoms from across the border in Seville, but the Algarve had its own regional capital and huge, invulnerable fortress. The capital was Chelb (or Xelb), and it was bigger and better defended than Lisbon. Today the town, known as Silves, is a provincial outpost whose only besiegers are busloads of tourists who climb the narrow streets up to the old Moorish ramparts.

Does the response "Roman" correctly answer the question "What countries or civilizations influenced early Portuguese culture, religion and architecture?"?

OPTIONS:
- no
- yes
***
Output:
yes