Problem: Please answer a question about the following article about Asphalt:
The world's largest deposit of natural bitumen, known as the Athabasca oil sands is located in the McMurray Formation of Northern Alberta. This formation is from the early Cretaceous, and is composed of numerous lenses of oil-bearing sand with up to 20% oil. Isotopic studies attribute the oil deposits to be about 110 million years old. Two smaller but still very large formations occur in the Peace River oil sands and the Cold Lake oil sands, to the west and southeast of the Athabasca oil sands, respectively. Of the Alberta bitumen deposits, only parts of the Athabasca oil sands are shallow enough to be suitable for surface mining. The other 80% has to be produced by oil wells using enhanced oil recovery techniques like steam-assisted gravity drainage.
What formative period  produced bitumen?
A: early Cretaceous
Problem: Please answer a question about the following article about Tucson, Arizona:
Perhaps the biggest sustainability problem in Tucson, with its high desert climate, is potable water supply. The state manages all water in Arizona through its Arizona Department of Water Resources (ADWR). The primary consumer of water is Agriculture (including golf courses), which consumes about 69% of all water. Municipal (which includes residential use) accounts for about 25% of use. Energy consumption and availability is another sustainability issue. However, with over 300 days of full sun a year, Tucson has demonstrated its potential to be an ideal solar energy producer.
How is most of Tucson's water used?
A: Agriculture (including golf courses)
Problem: Please answer a question about the following article about Portugal:
Portugal operates a multi-party system of competitive legislatures/local administrative governments at the national-, regional- and local-levels. The Assembly of the Republic, Regional Assemblies and local municipalities and parishes, are dominated by two political parties, the Socialist Party and the Social Democratic Party, in addition to the Unitary Democratic Coalition (Portuguese Communist Party and Ecologist Party "The Greens"), the Left Bloc and the Democratic and Social Centre – People's Party, which garner between 5 and 15% of the vote regularly.
What percentage of the vote do the non-dominant parties get?
A: 5 and 15%
Problem: Please answer a question about the following article about Roman Republic:
Mithridates the Great was the ruler of Pontus, a large kingdom in Asia Minor (modern Turkey), from 120 to 63 BC. Mithridates antagonised Rome by seeking to expand his kingdom, and Rome for her part seemed equally eager for war and the spoils and prestige that it might bring. In 88 BC, Mithridates ordered the killing of a majority of the 80,000 Romans living in his kingdom. The massacre was the official reason given for the commencement of hostilities in the First Mithridatic War. The Roman general Lucius Cornelius Sulla forced Mithridates out of Greece proper, but then had to return to Italy to answer the internal threat posed by his rival, Gaius Marius. A peace was made between Rome and Pontus, but this proved only a temporary lull.
How many Romans lived in Mithridate the Great's kingdom in 88 BC?
A:
80,000