Problem: Please answer a question about the following article about Tuvalu:
A major sporting event is the "Independence Day Sports Festival" held annually on 1 October. The most important sports event within the country is arguably the Tuvalu Games, which are held yearly since 2008. Tuvalu first participated in the Pacific Games in 1978 and in the Commonwealth Games in 1998, when a weightlifter attended the games held at Kuala Lumpur, Malaysia. Two table tennis players attended the 2002 Commonwealth Games in Manchester, England; Tuvalu entered competitors in shooting, table tennis and weightlifting at the 2006 Commonwealth Games in Melbourne, Australia; three athletes participated in the 2010 Commonwealth Games in Delhi, India, entering the discus, shot put and weightlifting events; and a team of 3 weightlifters and 2 table tennis players attended the 2014 Commonwealth Games in Glasgow. Tuvaluan athletes have also participated in the men's and women's 100 metre sprints at the World Championships in Athletics from 2009.
What competitions have Tuvalu athletes entered in the World Championships in Athletics?
A: 100 metre sprints
Problem: Please answer a question about the following article about Neptune:
Models suggest that Neptune's troposphere is banded by clouds of varying compositions depending on altitude. The upper-level clouds lie at pressures below one bar, where the temperature is suitable for methane to condense. For pressures between one and five bars (100 and 500 kPa), clouds of ammonia and hydrogen sulfide are thought to form. Above a pressure of five bars, the clouds may consist of ammonia, ammonium sulfide, hydrogen sulfide and water. Deeper clouds of water ice should be found at pressures of about 50 bars (5.0 MPa), where the temperature reaches 273 K (0 °C). Underneath, clouds of ammonia and hydrogen sulfide may be found.
What is Neptune's clouds competition variants dependent on? 
A: altitude
Problem: Please answer a question about the following article about Kievan Rus%27:
The new Kievan state prospered due to its abundant supply of furs, beeswax, honey, and slaves for export, and because it controlled three main trade routes of Eastern Europe. In the north, Novgorod served as a commercial link between the Baltic Sea and the Volga trade route to the lands of the Volga Bulgars, the Khazars, and across the Caspian Sea as far as Baghdad, providing access to markets and products from Central Asia and the Middle East. Trade from the Baltic also moved south on a network of rivers and short portages along the Dnieper known as the "route from the Varangians to the Greeks," continuing to the Black Sea and on to Constantinople. Kiev was a central outpost along the Dnieper route and a hub with the east-west overland trade route between the Khazars and the Germanic lands of Central Europe. These commercial connections enriched Rus' merchants and princes, funding military forces and the construction of churches, palaces, fortifications, and further towns. Demand for luxury goods fostered production of expensive jewelry and religious wares, allowing their export, and an advanced credit and money-lending system may have also been in place.
Why did the Kievan state prosper?
A: abundant supply of furs, beeswax, honey, and slaves for export
Problem: Please answer a question about the following article about Cardinal (Catholicism):
In cities other than Rome, the name cardinal began to be applied to certain church men as a mark of honour. The earliest example of this occurs in a letter sent by Pope Zacharias in 747 to Pippin III (the Short), ruler of the Franks, in which Zacharias applied the title to the priests of Paris to distinguish them from country clergy. This meaning of the word spread rapidly, and from the 9th century various episcopal cities had a special class among the clergy known as cardinals. The use of the title was reserved for the cardinals of Rome in 1567 by Pius V.
Which pope declared that cardinals would be from Rome?
A:
Pius V.