Q: This task involves creating questions from a given passage that involve some kind of complex reasoning (including numerical reasoning).
The generated questions must require looking at more than one part of the passage to answer. Try to use a variety of reasoning types in your questions (some of the sample reasoning types are illustrated in the 'positive examples' field) and also have a variety of answer types (spans, numbers, dates). A span is a continuous phrase taken directly from the passage or question. In such questions, the answer spans are recommended to be five words. Questions with answer type "number", are expected to start with "How many". For instance, "How long did an event last?" can be phrased as "How many years did an event last?". To increase diversity, try to create more questions for which the answer will be multiple spans. Please create questions that require AT LEAST 2 arithmetic operations as illustrated in the 'positive examples' field. You are encouraged to try DIFFERENT COMBINATIONS of operations and not just limit to the combinations shown in those examples. The more challenging questions you create, the better it is.
Passage: The Black Sea Fleet is the fleet of the Russian Navy in the Black Sea, the Sea of Azov and the Mediterranean Sea. The fleet is considered to have been founded by Prince Potemkin on May 13, 1783. In 1918, the fleet was inherited by the Russian SFSR then the Soviet Union in 1922, where it became part of the Soviet Navy. Following the collapse of the Soviet Union in 1991, the Black Sea Fleet and most of its vessels were inherited by the Russian Federation. The Black Sea Fleet's official primary headquarters and facilities are located in the city of Sevastopol, which is de jure part of Ukraine but de facto part of Russia . The remainder of the fleet's facilities are based in various locations on the Black Sea and the Sea of Azov, including Krasnodar Krai, Rostov Oblast and Crimea. The current commander is Admiral Aleksandr Viktorovich Vitko, who has held the position since April 2013.
A:
How many seas does the Black Sea Fleet reside in?