To_PRP the_AT0 editor_NN1 :_PUN Before-and-after_AJ0 photos_NN2 illustrate_VVB an_AT0 important_AJ0 benefit_NN1 of_PRF mechanical_AJ0 thinning_NN1 of_PRF forests_NN2 in_PRP strategic_AJ0 locations_NN2 ._SENT Adequate_AJ0 spacing_NN1 between_PRP trees_NN2 offers_VVZ the_AT0 pilot_NN1 of_PRF retardant-dropping_AJ0 planes_NN2 an_AT0 opening_NN1 to_PRP the_AT0 forest_NN1 floor_NN1 ._SENT On_PRP a_AT0 good_AJ0 day_NN1 ,_PUN the_AT0 retardant_AJ0 drop_NN1 will_VM0 slow_VVI the_AT0 ground-level_AJ0 fire_NN1 enough_AV0 to_TO0 allow_VVI engines_NN2 ,_PUN dozers_NN2 and_CJC hand_NN1 crews_NN2 to_TO0 place_VVI an_AT0 effective_AJ0 line_NN1 on_PRP the_AT0 perimeter_NN1 of_PRF the_AT0 fire_NN1 ._SENT The_AT0 combination_NN1 of_PRF a_AT0 crown_NN1 fire_NN1 and_CJC ground-level_AJ0 fire_NN1 moving_VVG through_PRP thick_AJ0 ,_PUN untreated_AJ0 forest_NN1 can_VM0 prove_VVI to_TO0 be_VBI too_AV0 much_AV0 for_PRP even_AV0 a_AT0 large_AJ0 load_NN1 of_PRF retardant_NN1 ._SENT In_PRP the_AT0 same_DT0 way_NN1 that_CJT snow_NN1 clings_VVZ to_PRP the_AT0 limbs_NN2 of_PRF trees_NN2 ,_PUN retardant_NN1 can_VM0 stick_VVI in_PRP the_AT0 branches_NN2 of_PRF a_AT0 thickly_AV0 growing_AJ0 forest_NN1 ,_PUN slowing_VVG the_AT0 crown_NN1 fire_NN1 ,_PUN while_CJS the_AT0 surface-level_AJ0 fire_NN1 continues_VVZ unabated_AJ0 ._SENT The_AT0 town_NN1 of_PRF Westwood_NP0 —_PUN not_XX0 the_AT0 habitat_NN1 of_PRF the_AT0 UCLA_NP0 Bruins_NP0 ,_PUN but_CJC the_AT0 Lassen_NP0 County_NN1 settlement_NN1 on_PRP Highway_NN1 36_CRD —_PUN had_VHD extensive_AJ0 forest_NN1 treatment_NN1 with_PRP adequate_AJ0 spacing_NN1 between_PRP the_AT0 pine_NN1 trees_NN2 ._SENT Westwood_NP0 is_VBZ still_AV0 intact_AJ0 ,_PUN and_CJC nearby_AV0 Greenville_NP0 is_VBZ n't_XX0 ._SENT 
