I learned myself about a four-year and a seven-year cycle, and that there were others!

The real key is the seven-year cycle and the fact that he killed seven women.

Most Vulcan males experienced it for the first time when they had achieved the age of twenty and in seven-year cycles after that.

In the Bible, good and bad fortune frequently occur in seven-year cycles.

Some people say it happens naturally in seven-year cycles.

The commission's staff and Nynex had proposed reviewing the company's progress after the fifth year of the plan's seven-year cycle.

A further year was to be added to bring the total length of education to twelve years by having a seven-year primary cycle.

Wild Belons tend to follow a seven-year cycle of reproduction, dipping in the later years.

The wealthy refused to loan money during the latter years of the seven-year cycle, refusing the poor even a temporary opportunity to make ends meet.

But the greatest stocks of our time - the technology stocks - do seem to run in seven-year cycles.