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'.

Example Input: 110 Volts is nominal and may vary when measured by a voltmeter. That said, power is supplied using sets of three separate parallel wires that you can see up on most power poles. The very high voltage there is stepped down using a transformer to supply most houses and businesses with a usable lower voltage. The voltage between any one of the three wires to ground in a house is 110 Volts for example to light a light bulb. The voltage between any two wires is 220 Volts and is used for example to power a clothes dryer or kitchen range. Houses do not use all three wires. A machine shop may power a large motor by connecting all three wires (in a delta or Y configuration) to obtain 440 Volts. Therefore the progression of 110, 220, and 440 Volts stems from the use of single, two and three-phase wiring circuits. Electrical power is conducted cross-country at very high voltages using high tension lines strung in sets of three wires or phases which produces the multiple of 11 you mention. Incidentally there may be an additional single wire above all the rest to arrest lightning strikes.
Example Output: 1

Example Input: The longest word without a vowel is Rhythm.
It is referenced on below web site where you can find more fun facts.
Example Output: 3

Example Input: Materials that form an inverse energy distribution? Not quite.

There are three basic components for getting a laser to work. First, one needs an excitation source (pumping source) such as a flashlamp, an electrical spark, etc. Second, one needs a material (the gain medium) which can exhibit what's known as population inversion - the capacity for a material to raise the electron energy level from the lower to the upper energy states. Nearly all materials will exhibit this behavior with some more efficiently than others. Finally, one needs to direct the stimulated energy by using a resonator.

There are many combinations of pump sources, lasing materials and optical configurations depending on the intended use. There are solid state (ruby, Nd:YAG), gas (nitrogen, helium-neon) and semiconductor (gallium-arsenide) lasers that come in a variety of wavelengths (colors) to choose from, again, depending on what you want to do with it.

Just a little bit of background: My degree is in Physics, and I've been working in the lasers and electro-optics field for the past 10+ years. You can see what my graduate lab at SDSU looked like at: http://www.equationlab.com/mtp/quantumblog/about.html
Example Output:
1