Task: Named Entity Recognition
Input (English):  Based on the canonical structure of group II mitochondrial introns ( 21 ) , two editing sites , C2 located at the Intron Binding Site 2 ( IBS2 ) and C3 located in the intron , nine residues downstream from the end of exon 1 in S . tuberosum rps10 are of particular interest .
Output (English): S . tuberosum