Problem: Ann Arbor was founded in 1824 by land speculators John Allen and Elisha Walker Rumsey. On 25 May 1824, the town plat was registered with Wayne County as "Annarbour;" this represents the earliest known use of the town's name. Allen and Rumsey decided to name it for their wives, both named Ann, and for the stands of Bur Oak in the 640 acres (260 ha) of land they purchased for $800 from the federal government at $1.25 per acre. The local Ojibwa named the settlement kaw-goosh-kaw-nick, after the sound of Allen's sawmill.
What were the names of the founders wives?
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Answer: Ann

Problem: Immunological research continues to become more specialized, pursuing non-classical models of immunity and functions of cells, organs and systems not previously associated with the immune system (Yemeserach 2010).
These three elements of the body are of new interest for what reason?
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Answer: not previously associated with the immune system

Problem: Another situation can occur when one party wishes to create an obligation under international law, but the other party does not. This factor has been at work with respect to discussions between North Korea and the United States over security guarantees and nuclear proliferation.
Discussions between what two countries have been influence by one party's desire to create an obligation under international law?
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Answer:
North Korea and the United States