document.writeln(' 1. regions
');
document.writeln(' 2. environment
');
document.writeln(' 3. arts humanities
');
document.writeln(' 4. electronics
');
document.writeln(' 5. diseases
');
document.writeln(' 6. us states
');
document.writeln(' 7. jobs
');
document.writeln(' 8. shopping
');
document.writeln(' 9. recreation sports
');
document.writeln(' 10. entertainment
');