rtokens: Only about 100 refugees a week are returning voluntarily to Rwanda in contrast to the 600 babies born in the camps weekly .
pos: NNP NNS VBD JJR IN CD NN NNS MD VB NN IN DT NN IN NNP IN NNP IN DT VBN CD NNS IN NNS IN DT JJ JJ NN NN IN NNP .
tokens: U.N. officials said more than 1,000 aid workers will take part in the census from Sunday until Tuesday of the estimated 727,000 refugees in camps around the eastern Zairean border town of Goma .
ltokens: It said refugees feared census takers would use indelible ink to mark them so they could be detected by Rwandan government troops and mistreated if they were forced back into Rwanda .