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: "when did the zhou dynasty overthrew the shang?" whose answer is 1046 BC.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when did the zhou dynasty overthrow the shang dynasty
Useful Output:

Doc 1: He was challenged by King Wen of Zhou (l. 1152-1056 BCE) and was overthrown by Wen's second son, King Wu, who reigned 1046-1043 BCE as the first
Doc 2: The Western Zhou dynasty was the third Chinese dynasty, founded in 1046 bce by King Wu of Zhou after he toppled the Shang regime. The dynasty fell in 771
Doc 3: The Shang were overthrown by King Wu of Zhou in 1046 BCE who founded the Zhou Dynasty (1046-256 BCE). The Zhou would be the last before the
Doc 4: The Western Zhou Dynasty, established around the early 11th century BCE, marked a significant era in ancient China following the overthrow of the Shang Dynasty.
Doc 5: The most recent findings have placed the outright start of the dynasty at 1046 bce. The dynasty ended in 256 bce. History.