Task: Named Entity Recognition
Input (English):  We now describe a HepG2 cell casein kinase II beta subunit cDNA of 2 . 57 kb containing 96 bases of 5 ' untranslated sequence , 645 bases of open reading frame , and 1832 bases of 3 ' untranslated sequence with two polyadenylation consensus signal sequences and two poly ( A ) stretches .
Output (English): casein kinase II