In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

[Q]: Which land along with Prussia made up the Kingdom of Prussia?, Context: Although Brandenburg was a part of the Holy Roman Empire, the Prussian lands were not within the Holy Roman Empire and were with the administration by the Teutonic Order grandmasters under jurisdiction of the Emperor. In return for supporting Emperor Leopold I in the War of the Spanish Succession, Elector Frederick III was allowed to crown himself "King in Prussia" in 1701. The new kingdom ruled by the Hohenzollern dynasty became known as the Kingdom of Prussia. The designation "Kingdom of Prussia" was gradually applied to the various lands of Brandenburg-Prussia. To differentiate from the larger entity, the former Duchy of Prussia became known as Altpreußen ("Old Prussia"), the province of Prussia, or "East Prussia".
[A]: Brandenburg


[Q]: How did CBS Records form a relationship with Tree International Publishing?, Context: In 1989, CBS Records re-entered the music publishing business by acquiring Nashville music publisher Tree International Publishing for more than $30 million.
[A]: acquiring


[Q]: Why did oldies get more popular?, Context: The "soft" AC format has reinvented in the late 2000s/early 2010s as a result of its declining relevance, adopting a more upmarket, middle-of-the-road approach, with a selection of "oldies" (usually from the 1960s/70s onwards), primarily rock, jazz, R&B and pop music. Newer songs are more often (but not limited to) "easy listening" fare, this amount varying depending on the age of the station's target demographic.
[A]:
The "soft" AC format has reinvented in the late 2000s/early 2010s