Problem: Utrecht:

The main local and regional bus station of Utrecht is located adjacent to Utrecht Centraal railway station, at the East and West entrances. Due to large scale renovation and construction works at the railway station, the station's bus stops are changing frequently. As a general rule, westbound buses depart from the bus station on the west entrance, other buses from the east side station. Local buses in Utrecht are operated by Qbuzz its services include a high-frequency service to the Uithof university district. The local bus fleet is one of Europe's cleanest, using only buses compliant with the Euro-VI standard as well as electric buses for inner city transport. Regional buses from the city are operated by Arriva and Connexxion.

What is one of Europes cleanest
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A: The local bus fleet is one of Europe's cleanest, using only buses compliant with the Euro-VI standard as well as electric buses for inner city transport

Problem: Capacitors made with any type of dielectric material will show some level of "dielectric absorption" or "soakage". On discharging a capacitor and disconnecting it, after a short time it may develop a voltage due to hysteresis in the dielectric. This effect can be objectionable in applications such as precision sample and hold circuits or timing circuits. The level of absorption depends on many factors, from design considerations to charging time, since the absorption is a time-dependent process. However, the primary factor is the type of dielectric material. Capacitors such as tantalum electrolytic or polysulfone film exhibit very high absorption, while polystyrene or Teflon allow very small levels of absorption. In some capacitors where dangerous voltages and energies exist, such as in flashtubes, television sets, and defibrillators, the dielectric absorption can recharge the capacitor to hazardous voltages after it has been shorted or discharged. Any capacitor containing over 10 joules of energy is generally considered hazardous, while 50 joules or higher is potentially lethal. A capacitor may regain anywhere from 0.01 to 20% of its original charge over a period of several minutes, allowing a seemingly safe capacitor to become surprisingly dangerous.
What amount of energy must a capacitor contain in order to be generally considered dangerous?
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Answer: over 10 joules of energy

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Rajasthan (/rdstn/ Hindustani pronunciation: [radstan] ( listen); literally, "Land of Kings") is India's largest state by area (342,239 square kilometres (132,139 sq mi) or 10.4% of India's total area). It is located on the western side of the country, where it comprises most of the wide and inhospitable Thar Desert (also known as the "Rajasthan Desert" and "Great Indian Desert") and shares a border with the Pakistani provinces of Punjab to the northwest and Sindh to the west, along the Sutlej-Indus river valley. Elsewhere it is bordered by the other Indian states: Punjab to the north; Haryana and Uttar Pradesh to the northeast; Madhya Pradesh to the southeast; and Gujarat to the southwest. Its features include the ruins of the Indus Valley Civilization at Kalibanga; the Dilwara Temples, a Jain pilgrimage site at Rajasthan's only hill station, Mount Abu, in the ancient Aravalli mountain range; and, in eastern Rajasthan, the Keoladeo National Park near Bharatpur, a World Heritage Site known for its bird life. Rajasthan is also home to two national tiger reserves, the Ranthambore National Park in Sawai Madhopur and Sariska Tiger Reserve in Alwar.
What percentage of total area does the Thar Desert take up in Punjab?
A: unanswerable

Context and question: Y-Gerat was the most complex system of the three. It was, in effect, an automatic beam-tracking system, operated through the bomber's autopilot. The single approach beam along which the bomber tracked was monitored by a ground controller. The signals from the station were retransmitted by the bomber's equipment. This way the distance the bomber travelled along the beam could be precisely verified. Direction-finding checks also enabled the controller to keep the crew on an exact course. The crew would be ordered to drop their bombs either by issue of a code word by the ground controller, or at the conclusion of the signal transmissions which would stop. Although its maximum usable range was similar to the previous systems, it was not unknown for specific buildings to be hit.
Who issued the code word to the bombers?
Answer: ground controller

Question: The United Nations Population Fund (UNFPA), formerly the United Nations Fund for Population Activities, is a UN organization. The UNFPA says it "is the lead UN agency for delivering a world where every pregnancy is wanted, every childbirth is safe and every young person's potential is fulfilled." Their work involves the improvement of reproductive health; including creation of national strategies and protocols, and providing supplies and services. The organization has recently been known for its worldwide campaign against obstetric fistula and female genital mutilation.
Is there an answer to this question: What does UNFPA not provide?

Answer: unanswerable

Problem: Heresy:

Within six years of the official criminalization of heresy by the Emperor, the first Christian heretic to be executed, Priscillian, was condemned in 386 by Roman secular officials for sorcery, and put to death with four or five followers. However, his accusers were excommunicated both by Ambrose of Milan and Pope Siricius, who opposed Priscillian's heresy, but "believed capital punishment to be inappropriate at best and usually unequivocally evil". For some years after the Reformation, Protestant churches were also known to execute those they considered heretics, including Catholics. The last known heretic executed by sentence of the Roman Catholic Church was Spanish schoolmaster Cayetano Ripoll in 1826. The number of people executed as heretics under the authority of the various "ecclesiastical authorities"[note 1] is not known.[note 2] One of the first examples of the word as translated from the Nag Hammadi's Apocalypse of Peter was" they will cleave to the name of a dead man thinking that they will become pure. But they will become greatly defiled and they will fall into the name of error and into the hands of an evil cunning man and a manifold dogma, and they will be ruled heretically".

From what passage is cited as being one of the first known examples of using the word heresy?
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A:
Nag Hammadi's Apocalypse of Peter