Task: Pos Tagging
Input (English): What are the notes for the matrix , element r of a ring R is one such that r − 1 is a nilpotent element ; in other words , ( r − 1 ) n is zero for some n ?
Output (English): WP VBP DT NNS IN DT NN , JJ NN IN DT NN NNP VBZ CD JJ IN VBP JJ CD VBZ DT JJ NN : IN JJ NNS , ( VB RB CD ) NN VBZ CD IN DT NNS .