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Exotic mesons with hidden strange ($s\bar s$) and heavy quark pairs ($Q\barQ$), where $Q=c,b$, are considered as diquark-antidiquark systems, $(Qs)(\barQ\bar s)$. Taking into account that these states can recombinate into two-mesonones, we study the interplay of these states in terms of the dispersionrelation D-function technique. The classification of exotic mesons isdiscussed, coefficients for decay modes are given, predictions for new statesare presented. The nonet structure for $((Qq)(\bar Q \bar q)$, ($(Qs)(\barQ\bar s$)), ($(Qq)(\bar Q\bar s))$- states ($q=u,d$) is suggested.

Exotic mesons with hidden charm as diquark-antidiquark states