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: "what greek roots were used to create the word photography?" whose answer is φῶς (phōs).
Each document should contain about 30 words, and these documents should contain useful information.

Query: Greek roots used in photography
Useful Output:

Doc 1: " Photography is derived from the Greek roots phos and graphe, meaning what?. This video will give you a 'Straight To the point' information
Doc 2: The word “φωτογραφία” (photograph) is compound and comes from the words -φως (light) και –γραφή (writing).
Doc 3: This content isn't available. This video is about Photo Root Word. Photo Root Word. 911 views · 4 years ago more. Choices for families.
Doc 4: Photograph comes from Greek not Latin and is a combination of 'photos' meaning 'light' and 'graphein' meaning 'to write'. From Wikipedia: The
Doc 5: Photographs are written in an oblique language of light, a language familiar to all. A picture is not worth a thousand words, it's illuminated by them!