11.   Also, stockpiles are falling as the industry enters its period of peak demand in the months leading up to Christmas.

12.   American movies were uninspired in those days, but European cinema in particular had entered a period of brilliance.

13.   And according to that theory, we are entering a period of peak comet arrivals.

14.   And in that time, the U.S. economy swooned, fought back and now seems poised to enter a period of renewed growth.

15.   Around the turn of the century, the sun is expected to enter a period of intensified solar activity.

16.   Banks and other financial companies fell amid concern about their health as they enter a period of unprecedented change in the industry.

17.   After three years of spectacular returns, the stock market seems to have entered a period of uncertainty.

18.   But benefits were reduced just as the United States entered a period of record-low unemployment in some parts of the country, including New England.

19.   But Marshall Acuff, equity strategist for Salomon Smith Barney in New York, believes the market has now entered a period of uncertainty.

20.   But Nynex and Bell Atlantic workers along the East Coast now enter a period of uncertainty about the safety of their jobs.