Facebook api get public posts and related data

Hello, Project title : Facebook Graph API programming I need a program which would extract the Public wall posts and their comments based on a Keywords. I will get a list of keywords which may change, it should be a table on mysql, each keyword gets its own search, for instance "US Economy", "UK Economy", "Mexico Economy". And the results will be tied to its keyword. The program should search all these Public wall posts and comment on those posts based on a keyword given. Get the data and also other information possible like Post details : Please refer following URL for more information([login to view URL]) GroupID (if the post if from a Group) PostID From(object containing the name and Facebook id of the user who posted the message) PostMessage Links in post Links description No. of likes Total comments Created time Type of post(link,photo,video) Comments details: ([login to view URL]) PostID ID Comment_text Comment_datetime likes Group details (if present) [login to view URL] GroupID Name Location Description Output expected(MySql Table) Post - Public posts Comments - (comments on that post) Groups - Groups (as related to Posts mapping to group ID to posts) Should be Automated as possible using Facebook Graph API - Ideas on how far we can search for posts on Facebook. This should be able to programmed to run every 1 hour or 30 minutes and get only the new posts related to the search. Thanks!!!