<s>
Migrant_NN1 workers_NN2 have_VH0 made_VVN a_AT1 great_JJ contribution_NN1 to_II the_AT prosperity_NN1 of_IO cities_NN2 ,_, but_CCB have_VH0 also_RR brought_VVN many_DA2 problems_NN2 ._. 
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<s>
Migrant_NN1 workers_NN2 perform_VV0 essential_JJ yet_RR undesirable_JJ manual_JJ labor_NN1 at_II low_JJ cost_NN1 ._. 
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<s>
However_RR ,_, they_PPHS2 are_VBR difficult_JJ for_IF authorities_NN2 to_TO monitor_VVI and_CC often_RR use_VVI public_JJ resources_NN2 without_IW paying_VVG for_IF them_PPHO2 through_II taxes_NN2 ._. 
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<s>
In_II the_AT United_NP1 States_NP1 ,_, most_DAT migrant_NN1 workers_NN2 are_VBR illegal_JJ immigrants_NN2 from_II Mexico_NP1 ._. 
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<s>
They_PPHS2 perform_VV0 a_AT1 lot_NN1 of_IO important_JJ farm-_NN1 and_CC field-work_NN1 that_CST would_VM otherwise_RR not_XX get_VVI done_VDN ._. 
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<s>
However_RR ,_, due_II21 to_II22 U._NP1 S._NP1 government_NN1 welfare_NN1 policies_NN2 ,_, they_PPHS2 have_VH0 been_VBN a_AT1 burden_NN1 on_II the_AT economy_NN1 of_IO the_AT Southwestern_JJ U._NP1 S._NP1 for_IF many_DA2 years_NNT2 ._. 
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<s>
Many_DA2 Southwestern_JJ U._NP1 S._NP1 citizens_NN2 resent_VV0 their_APPGE presence_NN1 ._. 
</s>
<s>
Chinese_JJ migrant_NN1 workers_NN2 are_VBR different_JJ ._. 
</s>
<s>
Most_DAT are_VBR peasants_NN2 from_II poverty-stricken_JJ areas_NN2 of_IO Sichuan_NP1 ,_, Henan_NP1 ,_, and_CC Anhui_JJ provinces_NN2 ._. 
</s>
<s>
While_CS they_PPHS2 are_VBR Chinese_JJ citizens_NN2 ,_, most_RGT illegally_RR enter_VV0 cities_NN2 without_IW obtaining_VVG the_AT proper_JJ Hukou_NN1 (_( residence_NN1 permits_VVZ )_) ._. 
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<s>
They_PPHS2 generally_RR perform_VV0 manual_JJ labor_NN1 for_IF the_AT cities_NN2 or_CC construction_NN1 companies_NN2 ._. 
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<s>
Some_DD stay_VV0 long-term_JJ ,_, while_CS others_NN2 only_RR work_VV0 a_AT1 short_JJ time_NNT1 during_II periods_NN2 when_RRQ no_AT farming_NN1 can_VM be_VBI done_VDN in_II their_APPGE home_NN1 cities/provinces_NN2 ._. 
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<s>
They_PPHS2 are_VBR a_AT1 burden_NN1 due_II21 to_II22 overpopulation_NN1 and_CC limited_JJ resource_NN1 availability_NN1 in_II Chinese_JJ cities_NN2 ._. 
</s>
<s>
While_CS migrant_NN1 workers_NN2 perform_VV0 a_AT1 lot_NN1 of_IO necessary_JJ work_NN1 ,_, they_PPHS2 bring_VV0 with_IW them_PPHO2 many_DA2 problems_NN2 ._. 
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<s>
Steps_NN2 need_VV0 to_TO be_VBI taken_VVN to_TO resolve_VVI the_AT problem_NN1 of_IO migrant_NN1 workers_NN2 ._. 
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<s>
However_RR ,_, it_PPH1 must_VM be_VBI remembered_VVN that_DD1 migrant_NN1 workers_NN2 are_VBR human_JJ beings_NN2 with_IW dignity_NN1 and_CC rights_NN2 ,_, and_CC should_VM be_VBI treated_VVN in_II a_AT1 humane_JJ manner_NN1 ._. 
</s>
<s>
Whatever_DDQV steps_NN2 need_VV0 to_TO be_VBI taken_VVN is_VBZ up_II21 to_II22 the_AT governments_NN2 in_II question_NN1 ._. 
</s>
