| http://www.w3.org/ns/prov#value | - In Formula 1, A1 to A4 are independently selected from the group consisting of hydrogen, a C1-C6 alkyl group, a C1-C6 alkoxy group, a C6-C18 aryloxy group, a C6-C20 aryl group, a C3-C20 heteroaryl group, an amino group, an alkylamino group, an arylamino group, a cyano group, a nitro group, a hydroxyl group, and a halogen atom, m is an integer of 1 to 4, n is an integer of 0 to 4, and at least one
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