"Fre" . "10115"^^ . "Frequency" . . . . . . "This frame element is defined as the number of times an event occurs per some unit of time. A Frequency expression answers the question how often. It is to be distinguished from Iteration, which pertains simply to the number of times an event occurs-Iteration expressions answer the question how many times."@en . . . "2006-05-24T13:51:16+02:00"^^ . .