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For both situations we prove that there exists the unique $H^1$ bounded trajectory of this equation defined for all $t\\in \\mathbb{R}$. Moreover we demonstrate that this trajectory attracts all trajectories both in pullback and forward sense. 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For both situations we prove that there exists the unique $H^1$ bounded trajectory of this equation defined for all $t\\in \\mathbb{R}$. Moreover we demonstrate that this trajectory attracts all trajectories both in pullback and forward sense. 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