Input: It is not enough to describe some objects by their location. We may also need to know its direction. For example, a wind blows a storm over your school. Where is that storm coming from? Where is it going? How can we describe a direction? The most common way is by using a compass. A compass is a device with a floating needle (Figure 2.1). The needle is a small magnet. The needle aligns itself with the Earth's magnetic field. The compass needle always points to magnetic north. If you have a compass and you find north. You can then know any other direction. See the directions, such as east, south, west, etc., on a compass rose. The Earth has two poles. It has a magnetic north pole. It also has a geographic north pole. These two poles are close to each other but not the exact same place.
"How does a compass work?" is "The compass needle always points to geographic north."?

OPTIONS:
- no
- yes
Output: no
Input: Before the establishment of the People's Republic, Albania's illiteracy rate was as high as 85%. Schools were scarce between World War I and World War II. When the People's Republic was established in 1945, the Party gave high priority to wiping out illiteracy. As part of a vast social campaign, anyone between the ages of 12 and 40 who could not read or write was mandated to attend classes to learn. By 1955, illiteracy was virtually eliminated among Albania's adult population. Today the overall literacy rate in Albania is 98.7%; the male literacy rate is 99.2% and female literacy rate is 98.3%. With large population movements in the 1990s to urban areas, the provision of education has undergone transformation as well. The University of Tirana is the oldest university in Albania, having been founded in October 1957.
"What year was the people's republic?" is "1990"?

OPTIONS:
- no
- yes
Output: no
Input: 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.
"What kind of charge is required for static electricity?" is "Negative"?

OPTIONS:
- no
- yes
Output:
no