Sentence:  The Kremlin 's goal is the isolation and capture , not of Ghana , but of the United States - and this purpose may be served very well by countries that masquerade under a `` neutralist '' mask , yet in fact <WSD>are</WSD> dependable auxiliaries of the Soviet Foreign Office . 
Meaning of the word marked with <WSD> tags:  have the quality of being; (copula, used with an adjective or a predicate noun)