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: "where does the name de los santos come from?" whose answer is Portugal.
Each document should contain about 30 words, and these documents should contain useful information.

Query: origin of the surname de los Santos
Useful Output:

Doc 1: Spanish : literally 'of the saints', a common element of personal names, originally denoting a child born or baptized on All Saints' Day. Search
Doc 2: Many Spanish surnames that begin with "de la" and "de los" in Spanish-speaking countries are written as "dela" and "delos" in the Philippines.
Doc 3: Derived from the orginal Roman (Latin) "sanctus" meaning blameworthy, this surname is best described as being of early European origins.
Doc 4: It's actually dervied from a late Latin/early Spanish way of saying "son of", like how in English we form names like "Richardson," "son of
Doc 5: The surname de Los Santos is a Hispanic name meaning "of the saints" and is one of the most common surnames in Portugal, Spain, Mexico, and other Latin American