Problem: The verbs of most aspect pairs differ in one of two ways: by prefix or by suffix. In prefix pairs, the perfective verb has an added prefix—for example, the imperfective psát (to write, to be writing) compared with the perfective napsat (to write down, to finish writing). The most common prefixes are na-, o-, po-, s-, u-, vy-, z- and za-. In suffix pairs, a different infinitive ending is added to the perfective stem; for example, the perfective verbs koupit (to buy) and prodat (to sell) have the imperfective forms kupovat and prodávat. Imperfective verbs may undergo further morphology to make other imperfective verbs (iterative and frequentative forms), denoting repeated or regular action. The verb jít (to go) has the iterative form chodit (to go repeatedly) and the frequentative form chodívat (to go regularly).
What is added to the perfective stem in a prefix pair?
---
Answer: unanswerable


Problem: Beginning in 1939, Dr. Peter Goldmark and his staff at Columbia Records and at CBS Laboratories undertook efforts to address problems of recording and playing back narrow grooves and developing an inexpensive, reliable consumer playback system. It took about eight years of study, except when it was suspended because of World War II. Finally, the 12-inch (30 cm) Long Play (LP) 33 1⁄3 rpm microgroove record album was introduced by the Columbia Record Company at a New York press conference on June 18, 1948.
What caused a delay in the production of high quality records?
---
Answer: World War II


Problem: The Northwestern University Law Review is a scholarly legal publication and student organization at Northwestern University School of Law. The Law Review's primary purpose is to publish a journal of broad legal scholarship. The Law Review publishes four issues each year. Student editors make the editorial and organizational decisions and select articles submitted by professors, judges, and practitioners, as well as student pieces. The Law Review recently extended its presence onto the web, and now publishes scholarly pieces weekly on the Colloquy. The Northwestern Journal of Technology and Intellectual Property is a law review published by an independent student organization at Northwestern University School of Law. Its Bluebook abbreviation is Nw. J. Tech. & Intell. Prop. The current editor-in-chief is Aisha Lavinier.
Who publishes the Southwestern Journal of Technology and Intellectual Property?
---
Answer:
unanswerable