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 is the richest ruler in the world?" whose answer is Ahmed bin Saeed Al Maktoum.
Each document should contain about 30 words, and these documents should contain useful information.

Query: King Salman bin Abdulaziz Al Saud net worth
Useful Output:

Doc 1: For context, that's about 16 times the British royal family's net worth of $88 billion  King Salman bin Abdulaziz Al Saud 02:34 Prince Mohammed
Doc 2: King Salman's personal net worth is estimated at $20 billion, derived from various investments and assets. The House of Saud, the royal family,
Doc 3: He had a net worth of $18 billion. Like Fahd, Abdullah was one of Ibn Saud's many sons. Ibn was the founder of modern Saudi Arabia, and he held lots of
Doc 4: Saudi Arabia's King Salman bin Abdulaziz al Saud, who has an estimated net worth of over $17 billion (£13.8 billion), is not one for subtlety.
Doc 5: The net worth of Mohammed Bin Salman, the Crown Prince and the Prime Minister of Saudi Arabia, is estimated to be around $25 billion.