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Using the light cone wave functions which are obtained from the baryon-meson fluctuation model in terms of the $|q\\bar{q}B\\rangle$ Fock states, we calculate the Wigner distributions for the unpolarized/longitudinally polarized sea quark in an unpolarized/longitudinally polarized proton. The Wigner distributions can be obtained through a Fourier transform on the generalized transverse-momentum dependent parton distributions (GTMDs). 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