You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "who seized ukraine and belarus to form the soviet union?" whose answer is Józef Piłsudski.
Each document should contain about 30 words, and these documents should contain useful information.

Query: seizure of Ukraine and Belarus by the Soviet Union
Useful Output:

Doc 1: Ukraine and Belarus are the first targets in Putin's quest to revive the old empire in some form. And while the world watches Russia's
Doc 2: At the end of World War I in 1918, Ukraine was invaded by Soviet Russia as the Russian puppet government of the Ukrainian SSR and without official declaration
Doc 3: After the fall of the Soviet Union, Ukraine and Belarus unite due to Leonid Kravchuk being elected as Chairman of the Supreme Council of Belarus.
Doc 4:  Soviet Union and, by year's end, has seized almost all of Ukraine. Some Ukrainians initially welcome the Germans as liberators, even going
Doc 5: Joseph Stalin seized Ukraine and Belarus to form the Soviet Union.  Explanation. Joseph Stalin was the communist leader who seized Ukraine and