1.   This feature is called the Markov property and a sequence of observations possessing this property is called a Markov chain.

2.   America Online has a feature called Mail Controls that can help you filter spam.

3.   Another helpful new feature is called Keychain.

4.   Another neat new feature is called drag and drop.

5.   Another new feature is called Keychain.

6.   Another cool new feature is something called pop-up windows.

7.   But its niftiest feature is something called AutoScroll, in which you can scroll through a document automatically.

8.   Explorer has a splashy feature called scrolling marquees, in which text dances across a Web page.

9.   In addition, it has a feature called AutoPrint, which automatically can print incoming faxes.

10.   Internet phone service and competition are likely to drive down rates, and BellSouth already looks to calling features like voice mail as the source of profits.