rtokens: " They entered this morning .
pos: JJ NNS IN NNP VBD JJ JJ NNP IN DT NN IN DT NN VBN IN NNP IN DT NN , DT JJ JJ NN VBN NNP .
tokens: Iranian troops on Saturday entered Kurdish-controlled northern Iraq in the wake of an assault backed by Baghdad into the region , an Iraqi Kurdish group told Reuters .
ltokens: ISTANBUL 1996-08-31