Sentence:  At the workshop , Mrs. Schenk will discuss `` the board and the staff , librarian-board relationships , personnel policies , how good is our librarian and staff , how good am I as a library board member and how good <WSD>is</WSD> our library '' . 
Meaning of the word marked with <WSD> tags:  have the quality of being; (copula, used with an adjective or a predicate noun)