_:vb50935259 . _:vb50935259 . . _:vb50935259 ":arcc045b702" . . _:vb50935259 . . "ribonucleic acid"@en . _:vb50935259 "2"^^ . . "SIO_010009" . _:vb50935259 . "A ribonucleic acid is an organic polymer composed of a sequence of ribonucleotide residues."@en . . _:vb50935259 .