Problem: Dog:

Purebred dogs of one breed are genetically distinguishable from purebred dogs of other breeds, but the means by which kennel clubs classify dogs is unsystematic. Systematic analyses of the dog genome has revealed only four major types of dogs that can be said to be statistically distinct. These include the "old world dogs" (e.g., Malamute and Shar Pei), "Mastiff"-type (e.g., English Mastiff), "herding"-type (e.g., Border Collie), and "all others" (also called "modern"- or "hunting"-type).

The methods kennel clubs used to classify dogs is what?
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A: unsystematic.

Problem: Roman Republic:

Historians see the growing Roman influence over the east, as with the west, as not a matter of intentional empire-building, but constant crisis management narrowly focused on short-term goals within a highly unstable, unpredictable, and inter-dependent network of alliances and dependencies. With some major exceptions of outright military rule, the Roman Republic remained an alliance of independent city-states and kingdoms (with varying degrees of independence, both de jure and de facto) until it transitioned into the Roman Empire. It was not until the time of the Roman Empire that the entire Roman world was organized into provinces under explicit Roman control.

At what point was the entire Roman world joined together under Roman control?
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A: the time of the Roman Empire

Problem: Tibet:

The language has numerous regional dialects which are generally not mutually intelligible. It is employed throughout the Tibetan plateau and Bhutan and is also spoken in parts of Nepal and northern India, such as Sikkim. In general, the dialects of central Tibet (including Lhasa), Kham, Amdo and some smaller nearby areas are considered Tibetan dialects. Other forms, particularly Dzongkha, Sikkimese, Sherpa, and Ladakhi, are considered by their speakers, largely for political reasons, to be separate languages. However, if the latter group of Tibetan-type languages are included in the calculation, then 'greater Tibetan' is spoken by approximately 6 million people across the Tibetan Plateau. Tibetan is also spoken by approximately 150,000 exile speakers who have fled from modern-day Tibet to India and other countries.

How many people who have fled modern-day Tibet are considered to be exile speakers of Tibetan?
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A: approximately 150,000

Problem: Royal Dutch Shell:

Shell's primary business is the management of a vertically integrated oil company. The development of technical and commercial expertise in all stages of this vertical integration, from the initial search for oil (exploration) through its harvesting (production), transportation, refining and finally trading and marketing established the core competencies on which the company was founded. Similar competencies were required for natural gas, which has become one of the most important businesses in which Shell is involved, and which contributes a significant proportion of the company's profits. While the vertically integrated business model provided significant economies of scale and barriers to entry, each business now seeks to be a self-supporting unit without subsidies from other parts of the company.

The development of what two types of exptertise established the core competencies on which the company was founded?
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A:
technical and commercial