rtokens: It closed at $ 15.80 on Thursday .
pos: PRP VBD DT NN POS NN IN $ CD CC DT NN VBZ JJ IN $ CD .
tokens: It recorded the day 's low of $ 15.475 and the day 's high of $ 15.725 .
ltokens: PT Tambang Timah closed at $ 15.575 per GDR in London on Friday .