rtokens: There were no clashes .
pos: CD NNS IN JJ NN NN CC CD NN NNS VBD IN JJ IN CD IN DT NNS IN DT NN .
tokens: Seven truckloads of armed riot police and three fire engines were on standby at one of the junctions near the institute .
ltokens: About 200 Burmese students marched briefly from troubled Yangon Institute of Technology in northern Rangoon on Friday towards the University of Yangon six km ( four miles ) away , and returned to their campus , witnesses said .