Article: In coniferous or softwood species the wood cells are mostly of one kind, tracheids, and as a result the material is much more uniform in structure than that of most hardwoods. There are no vessels ("pores") in coniferous wood such as one sees so prominently in oak and ash, for example.

Question: What hardwood that starts with the letter "O" would have pores?
Ans: oak

Article: In 1562 Francisco de Ibarra headed a personal expedition in search of the mythical cities of Cibola and Quivira; he traveled through the present-day state of Chihuahua. Francisco de Ibarra is thought to have been the first European to see the ruins of Paquime. In 1564 Rodrigo de Rio de Loza, a lieutenant under Francisco de Ibarra, stayed behind after the expedition and found gold at the foot of the mountains of the Sierra Madre Occidental; he founded the first Spanish city in the region, Santa Barbara in 1567 by bringing 400 European families to the settlement. A few years later in 1569 Franciscan missionaries led by Fray Agustin Rodriguez from the coast of Sinaloa and the state of Durango founded the first mission in the state in Valle de San Bartolome (present-day Valle de Allende). Fray Agustin Rodriguez evangelized the native population until 1581. Between 1586 and 1588 a epidemic caused a temporary exodus of the small population in the territory of Nueva Vizcaya.

Question: Through which present-day state did he travel?
Ans: Chihuahua

Article: In the early years, Universal had a "clean picture" policy. However, by April 1927, Carl Laemmle considered this to be a mistake as "unclean pictures" from other studios were generating more profit while Universal was losing money.

Question: Why did Laemmle change his position on "unclean pictures"?
Ans: Universal was losing money

Article: The Philadelphia dialect, which is spread throughout the Delaware Valley and South Jersey, is part of Mid-Atlantic American English, and as such it is identical in many ways to the Baltimore dialect. Unlike the Baltimore dialect, however, the Philadelphia accent also shares many similarities with the New York accent. Thanks to over a century of linguistics data collected by researchers at the University of Pennsylvania, the Philadelphia dialect under sociolinguist William Labov has been one of the best-studied forms of American English.[f]

Question: Who studies the accent at the University of Pennsylvania?
Ans:
William Labov