rtokens: Police also would not say why Wang was being sent to a study class -- a holdover from the chaotic 1966-76 Cultural Revolution -- or say when he would be released , the group said .
pos: NNS VBD DT NN IN VBG NNP IN NNP CC MD RB VB PRP$ NN VBP PRP CC VB WRB PRP VBD VBG VBN , DT NN VBD .
tokens: Police gave no reason for detaining Wang on Friday and would not let his family meet him or say where he was being held , the group said .
ltokens: Police in Hangzhou , capital of the eastern province of Zhejiang , told Wang 's family that Wang would be sent to a study class , a euphemism for coercive ideological reform , the group said .