Complex sentence: The sign was donated by Dade Heritage Trust to MiMO Biscayne Association which is overseeing the careful restoration of the Coppertone girl who will be returned to her old neighborhood where she will live with her dog on the side of a building at 7300 Biscayne Boulevard.
Split into simpler sentences: The sign was donated by Dade Heritage Trust to MiMO Biscayne Association which is overseeing the careful restoration of the Coppertone girl. She will be returned to her old neighborhood to live with her dog on the side of a building at 7300 Biscayne Boulevard.