Input: Mechanical energy is a combination of the energy of motion or position. This type of energy describes objects that are moving or could move. A moving ball can have energy from motion. An arrow can also have the energy of motion. Both are types of mechanical energy. Can you think of some other examples? Where does the energy of motion come from? It comes from the energy created by position. This energy is stored energy. This means it is not moving yet, but it has the potential to move. How can you store energy? The arrow gains energy from the drawn bow. As the arrow is released, the bow releases its stored energy and puts the arrow into motion. Can you think of some other ways to store energy using position?
"How can a ball that is not moving possess energy of position?" is "It is because it has mechanical energy"?

OPTIONS:
- no
- yes
Output: no
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.
"Where did the people live and what happened to the landscape over the years?" is "Caves"?

OPTIONS:
- no
- yes
Output: yes
Input: Victims of domestic violence will have access to quality legal representation through a campaign undertaken by Idaho Supreme Court Chief Justice Linda Copple Trout and corporate leaders. "Thousands of times a year, Idahoans are victims of domestic violence. The victims are often women and their children and they frequently have few resources with which to pursue their legal rights," Trout said Tuesday. "This campaign helps fill that gap in legal services for women who need the help at a time when they are in crisis." The Idaho Partners for Justice Project has already secured pledges of more than $35,000 from law firms, attorneys, corporations and individuals. The goal is $100,000. The drive to pay for free legal services will continue for the next two months. The money goes to Idaho Legal Aid Services and the Idaho Volunteer Lawyers Program. Last year, more than 5,000 petitions were filed in Idaho for protection orders in domestic violence cases. More than 12,000 victims contacted shelters or crisis hotlines. Joining Trout in the announcement was Idaho Bar Association President Fred Hoopes of Idaho Falls and Ida-West Energy Co. Chief Executive Officer Randy Hill, members of the project's executive committee. Also on hand were some women who were victims of such violence, but benefited from free legal services. Last year's campaign generated enough money and resources to help more than 450 victims. The help ranged from representation in protection order hearings to legal assistance in divorce, visitation and child support cases. The donations are tax deductible.
"How much longer will Idaho Partners for Justice Project solicit donations?" is "2 months"?

OPTIONS:
- no
- yes
Output:
yes