You are given a passage. Using the information present in the passage, you need to classify it into one of the 10 topics: 0 - 'Society & Culture', 1 - 'Science & Mathematics', 2 - 'Health', 3 - 'Education & Reference', 4 - 'Computers & Internet', 5 - 'Sports', 6 - 'Business & Finance', 7 - 'Entertainment & Music', 8 - 'Family & Relationships', 9 - 'Politics & Government'.

[Q]: Tags are like post-it notes that readers of the content leave behind for other readers. They give clues to the context and meaning beyond a simple description. They're like finding notes in a text book scribbled by a previous owner. You can usually gain insight into the material based on those notes. \n\nNow imagine there is a cross-reference of all those post-its and margin notes. More than one person can add their own post-it. You can easily find the most popular "post-its" thanks to an index of all of them.  This is where the real power of tagging lies-- in the weight and meaning these agreed-upon notes give.\n\nOf course, context is everything. Next time you're together, show her MyWeb2.0 and del.icio.us in action. Show her how the information is sliced and diced-- most recent, most popular, most frequently used tags. I find my parents only get these new paradigms when I show them to them in context.
[A]: 4


[Q]: Both are ways to communicate instantly on the web, by typing on your keyboard. In online chat, you communicate with a community of people with similar interests. With instant messaging, you communicate one-to-one, usually with someone you know.
[A]: 4


[Q]: Too complicated to summarize here, please read article linked below.
[A]:
5


