Problem: Portugal:

The Portuguese language is derived from the Latin spoken by the romanized Pre-Roman peoples of the Iberian Peninsula around 2000 years agoparticularly the Celts, Tartessians, Lusitanians and Iberians. In the 15th and 16th centuries, the language spread worldwide as Portugal established a colonial and commercial empire between 1415 and 1999. Portuguese is now spoken as a native language in five different continents, with Brazil accounting for the largest number of native Portuguese speakers of any country (200 million speakers in 2012).

Between what years did Portugal establish a colonial and commercial empire?
---
A: 1415 and 1999

Problem: University:

Examining the influence of humanism on scholars in medicine, mathematics, astronomy and physics may suggest that humanism and universities were a strong impetus for the scientific revolution. Although the connection between humanism and the scientific discovery may very well have begun within the confines of the university, the connection has been commonly perceived as having been severed by the changing nature of science during the scientific revolution. Historians such as Richard S. Westfall have argued that the overt traditionalism of universities inhibited attempts to re-conceptualize nature and knowledge and caused an indelible tension between universities and scientists. This resistance to changes in science may have been a significant factor in driving many scientists away from the university and toward private benefactors, usually in princely courts, and associations with newly forming scientific societies.

Where might a scientist find a friendly private benefactor?
---
A: princely courts

Problem: Infection:

Serological methods are highly sensitive, specific and often extremely rapid tests used to identify microorganisms. These tests are based upon the ability of an antibody to bind specifically to an antigen. The antigen, usually a protein or carbohydrate made by an infectious agent, is bound by the antibody. This binding then sets off a chain of events that can be visibly obvious in various ways, dependent upon the test. For example, "Strep throat" is often diagnosed within minutes, and is based on the appearance of antigens made by the causative agent, S. pyogenes, that is retrieved from a patients throat with a cotton swab. Serological tests, if available, are usually the preferred route of identification, however the tests are costly to develop and the reagents used in the test often require refrigeration. Some serological methods are extremely costly, although when commonly used, such as with the "strep test", they can be inexpensive.

What is the special agent of "strep throat"?
---
A: unanswerable

Problem: Adolescence:

Adolescents can conceptualize multiple "possible selves" that they could become and long-term possibilities and consequences of their choices. Exploring these possibilities may result in abrupt changes in self-presentation as the adolescent chooses or rejects qualities and behaviors, trying to guide the actual self toward the ideal self (who the adolescent wishes to be) and away from the feared self (who the adolescent does not want to be). For many, these distinctions are uncomfortable, but they also appear to motivate achievement through behavior consistent with the ideal and distinct from the feared possible selves.

How can the feared self be described in terms of the adolescent?
---
A:
who the adolescent does not want to be