Sentence:  Cathy J. Hanover ( Tar Heel-Kaola Hanover ) , formerly called Karet Hanover , has <WSD>been</WSD> rather a problem child , but it getting better all the while and can pace a twice around in about 2 : 31 . 
Meaning of the word marked with <WSD> tags:  have the quality of being; (copula, used with an adjective or a predicate noun)