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'.

[EX Q]: The Wall stretches over a formidable 6,350 km (3,946 miles), from Shanhai Pass on the Bohai Gulf in the east, at the limit between China proper and Manchuria, to Lop Nur in the southeastern portion of Xinjiang Uygur Autonomous Region.
[EX A]: 3

[EX Q]: The best defense is your mind. Stay out of situations where the temper would escalate to violence. If you use words and your brain, you can get out of almost any bad situation without coming to blows.

If you absolutely *have* to defend yourself from imminent physical assault, remember that the law favors even-handed responses, meaning don't defend yourself with a deadly weapon unless you're threatened with one.
[EX A]: 6

[EX Q]: I don't think Cell Phones and PDAs should be allowed since students may spend lot of time playing with (and showing off) the cool features of these gadgets. Also, some features can be misused (eg. camera phones). For communicating during emergency situations, I am sure school phones can be used.
[EX A]:
3