rtokens: " Terrorists and smugglers have dug up the mines , defused them and opened up wide paths in some areas .
pos: PRP VBD NNP NNPS NNP ( NNP ) NNS RB VBP DT NN IN VBN NNS IN DT NN JJR IN DT NN NNS .
tokens: It said Kurdistan Workers Party ( PKK ) guerrillas sometimes know the layout of mined areas along the border better than the security forces .
ltokens: Officials say the minefields present an obstacle to the security forces , " it said .