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: "Which screenwriter is French, Roger Vadim or Robert Z. Leonard?" whose answer is Roger Vadim Plemiannikov.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Roger Vadim nationality
Useful Output:

Doc 1: Son of Igor Nikolaevich Plemiannikov, a White Russian officer and pianist who emigrated from Ukraine, became a naturalized French citizen, and
Doc 2: Roger was a French screenwriter, film director, and producer, as well as an author, artist, and occasional actor. His best-known works are
Doc 3: Vadim was born as Roger Vladimir Plemiannikov in Paris. His Belarusian father, Igor Plemiannikov, had immigrated from Ukraine and became a naturalized French
Doc 4: Vadim, born of French-Ukrainian parents in Paris on Jan. 26, 1928 and named Roger Vadim Plemiannikov, began his professional life as a stage
Doc 5: Born Vladimir Igorevich Plemiannikov in Paris, France, he was the son of Russian-Ukrainian diplomat Igor Plemiannikov and his wife, actress Marie-Antoinette