instruction:
In this task, you're given a context, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both context and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the context or linked information.
question:
Context: Izold Pustõlnik graduated cum laude from Odessa University in 1960 Link Information: none Answer: none
answer:
Which school had more students attending the year that Pustõlnik graduated from Odessa University; Saint Petersburg State University or the University of Tartu?


question:
Context: the Khan of Khiva and the Emir of Bukhara Link Information: none Answer: none
answer:
Which place has the highest recorded population, the place where the Khan came from or the place where the Emir came from?


question:
Context: the new 420 class racing vessels which were already popular in Europe and Australia Link Information: Europe covers about 10,180,000 km2, or 2% of the Earth's surface (6.8% of land area).  Answer: Europe

answer:

Which continent where the 420 class racing vessels are popular currently has the larger population?