You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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The IUPAC name of a certain molecule is N-(4-dibenzofuran-4-ylphenyl)-N-(4-phenylphenyl)spiro[fluorene-9,7'-fluoreno[2,3-b][1]benzofuran]-1-amine . Can you provide its SMILES representation?
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