rtokens: Seventy-seven students were found with the watches and disqualified , O Globo said .
pos: NNP NNP NNP NN NN NNS VBD NNS VBD VBG CD NNS ( $ CD ) IN DT JJ NNS , WDT VBD IN DT NN NN TO VB JJ NNS , UH NNP VBD .
tokens: Rio de Janeiro state university officials discovered students were paying 15,000 reais ( $ 14,563 ) for the special watches , which operated like a telephone pager to receive correct answers , O Globo said .
ltokens: Brazilian students have been caught cheating in university entrance exams by using digital watches which gave the correct answers to test questions , a newspaper said on Friday .