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: "War and Peace and Tamerlano, is what type of play?" whose answer is opera.
Each document should contain about 30 words, and these documents should contain useful information.

Query: types of plays "Tamerlano"
Useful Output:

Doc 1: Tamerlano (1724): 2 Sopranos, 1 Contralto (male rôle), 1 Alto (Tamerlano), 1 Tenor, 1 Bass. Admeto (1727): 2 Sopranos, 2 Altos, 1 Contralto (
Doc 2: In Tamerlano, Handel defied rules both written and tacit—offering a main role to a mature tenor at a time when the castrato voice dominated; and
Doc 3: The opera develops the intrigues of the rivalry between Tamerlano, the Mongol conqueror, and Bajazet, the Ottoman emperor.  From flamenco shows
Doc 4: The protagonist in Tamerlano is based on a historical figure, Timur “the lame.” He was a Turkish nomadic bandit who became emperor of Central Asia.
Doc 5: Handel's opera Tamerlano (1724) has tended to be more respected than loved as a masterpiece, given how comparatively infrequently it is