Sentence:  For example , in accordance with the fashion of the times , most transitional societies have announced economic development plans of varying numbers of years ; such <WSD>is</WSD> the mystique of planning that people expect that fulfillment of the plan will follow automatically upon its announcement . 
Meaning of the word marked with <WSD> tags:  have the quality of being; (copula, used with an adjective or a predicate noun)