Sentence:  The actual mean of 1.07 being about halfway between 0 of complete correlation and 2.0 of no correlation , it is evident that there <WSD>is</WSD> a pretty fair degree of similarity in the behavior even of particular individual items of meaning as regards long-term stem displacement . 
Meaning of the word marked with <WSD> tags:  have the quality of being; (copula, used with an adjective or a predicate noun)