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: "Valery Lagunov, was born on July 2, 1942 in Moscow, Russia, he played in "Sleeping Beauty" as "Prince", a ballet in a prologue and three acts, first performed in which year?" whose answer is 1890.
Each document should contain about 30 words, and these documents should contain useful information.

Query: first performance year of Sleeping Beauty ballet
Useful Output:

Doc 1: PBT's first performance of The Sleeping Beauty opened at the Benedum Center in 1979, and 40 years later we bring Princess Aurora and her
Doc 2: The premiere of Sir Peter Wright's Sleeping Beauty, performed by Dutch National Ballet in 1981, was an important event in the Netherlands.
Doc 3: Dutch National Ballet danced its first complete Sleeping Beauty in 1968, in a version by the Polish choreographer Conrad Drzewiecki. Four years
Doc 4: The Sleeping Beauty was born in 1890 at St. Petersburg's Mariinsky Theatre. Choreographed by the grand master of Russian ballet, Marius Petipa.
Doc 5: 1946 The Royal Ballet (formerly Sadler's Wells Ballet) selects The Sleeping Beauty as its first performance when reopening the Royal Opera