41.   It was guided to a target by a sensor that compared key features of the terrain with a pre-programmed radar flight-path map.

42.   Its key feature will be two large glass walls that allow park visitors to peer in during tapings.

43.   Last month, Fidelity distributed thousands of newspaper inserts to market its True North fund, with Hirsch a key feature of the advertisement.

44.   Key features are expanded check-in and retail areas, new lounges and a new parking decks.

45.   Key new features include improved Internet searching, optional encryption of user documents and automatic updating of drivers and other system files.

46.   Medicare omits key features of most employer-provided health insurance plans.

47.   Moreover, he notes, a key feature of Social Security is that it redistributes money from wealthier workers to low-income earners.

48.   Neither do they contain the key features of most desktop PCs -- Intel processors and Microsoft Windows software.

49.   One key feature of derivatives is they can get you in a pot of trouble very quickly.

50.   Reports about Sonata and its key features are proliferating across the Web, featured at such sites as Apple Insider, MacIntouch and Webintosh.