Sentence:  If he thus achieves a lyrical , dreamlike , drugged intensity , he pays the price for his indulgence by producing work - Allen Ginsberg 's `` Howl '' <WSD>is</WSD> a striking example of this tendency - that is disoriented , Dionysian but without depth and without Apollonian control . 
Meaning of the word marked with <WSD> tags:  have the quality of being; (copula, used with an adjective or a predicate noun)