Sentence:  Lacking the respected and effective institutions that consensus helps provide , minority parties , such as the P.D.I. in 1957 and the progressive Istiqlal faction in 1958 , clamor for elections when out of power , but <WSD>are</WSD> not at all certain they wish to be controlled by popular choice when in power . 
Meaning of the word marked with <WSD> tags:  have the quality of being; (copula, used with an adjective or a predicate noun)