FLORENCE_NP0 —_PUN As_CJS early_AV0 as_CJS 1595_CRD ,_PUN descriptions_NN2 of_PRF stains_NN2 and_CJC discoloration_NN1 began_VVD to_TO0 appear_VVI in_PRP accounts_NN2 of_PRF a_AT0 sarcophagus_NN1 in_PRP the_AT0 graceful_AJ0 chapel_NN1 Michelangelo_NP0 created_VVD as_PRP the_AT0 final_AJ0 resting_AJ0 place_NN1 of_PRF the_AT0 Medicis_NN1 ._SENT In_PRP the_AT0 ensuing_AJ0 centuries_NN2 ,_PUN plasters_NN2 used_VVN to_TO0 incessantly_AV0 copy_VVI the_AT0 masterpieces_NN2 he_PNP sculpted_VVD atop_PRP the_AT0 tombs_NN2 left_VVD discoloring_AJ0 residues_NN2 ._SENT His_DPS ornate_AJ0 white_AJ0 walls_NN2 dimmed_VVN ._SENT Nearly_AV0 a_AT0 decade_NN1 of_PRF restorations_NN2 removed_VVN most_DT0 of_PRF the_AT0 blemishes_NN2 ,_PUN but_CJC the_AT0 grime_NN1 on_PRP the_AT0 tomb_NN1 and_CJC other_AJ0 stubborn_AJ0 stains_NN2 required_VVN special_AJ0 ,_PUN and_CJC clandestine_AJ0 ,_PUN attention_NN1 ._SENT In_PRP the_AT0 months_NN2 leading_VVG up_AVP to_PRP Italy_NP0 's_POS Covid-19_NN1 epidemic_NN1 and_CJC then_AV0 in_PRP some_DT0 of_PRF the_AT0 darkest_AJS days_NN2 of_PRF its_DPS second_ORD wave_NN1 as_PRP the_AT0 virus_NN1 raged_VVD outside_AV0 ,_PUN restorers_NN2 and_CJC scientists_NN2 quietly_AV0 unleashed_VVN microbes_NN2 with_PRP good_AJ0 taste_NN1 and_CJC an_AT0 enormous_AJ0 appetite_NN1 on_PRP the_AT0 marbles_NN2 ,_PUN intentionally_AV0 turning_VVG the_AT0 chapel_NN1 into_PRP a_AT0 bacterial_AJ0 smorgasbord_NN1 ._SENT "_PUQ It_PNP was_VBD top_AJ0 secret_NN1 ,_PUN "_PUQ said_VVD Daniela_NP0 Manna_NP0 ,_PUN one_CRD of_PRF the_AT0 art_NN1 restorers_NN2 ._SENT On_PRP a_AT0 recent_AJ0 morning_NN1 ,_PUN she_PNP reclined_VVD —_PUN like_PRP Michelangelo_NP0 's_POS allegorical_AJ0 sculptures_NN2 of_PRF Dusk_NN1 and_CJC Dawn_NN1 above_PRP her_PNP —_PUN and_CJC reached_VVD into_PRP the_AT0 shadowy_AJ0 nook_NN1 between_PRP the_AT0 chapel_NN1 wall_NN1 and_CJC the_AT0 sarcophagus_NN1 to_TO0 point_VVI at_PRP a_AT0 dirty_AJ0 black_AJ0 square_NN1 ,_PUN a_AT0 remnant_NN1 showing_VVG just_AV0 how_AVQ filthy_AJ0 the_AT0 marble_NN1 had_VHD become_VVN ._SENT She_PNP attributed_VVD the_AT0 mess_NN1 to_PRP one_CRD Medici_NN1 in_PRP particular_AJ0 ,_PUN Alessandro_NP0 Medici_NP0 ,_PUN a_AT0 ruler_NN1 of_PRF Florence_NP0 ,_PUN whose_DTQ assassinated_AJ0 corpse_NN1 had_VHD apparently_AV0 been_VBN buried_VVN in_PRP the_AT0 tomb_NN1 without_PRP being_VBG properly_AV0 eviscerated_VVN ._SENT Over_PRP the_AT0 centuries_NN2 ,_PUN he_PNP seeped_VVD into_PRP Michelangelo_NP0 's_POS marble_NN1 ,_PUN the_AT0 chapel_NN1 's_POS experts_NN2 said_VVD ,_PUN creating_VVG deep_AJ0 stains_NN2 ,_PUN button-shaped_AJ0 deformations_NN2 ,_PUN and_CJC ,_PUN more_AV0 recently_AV0 ,_PUN providing_VVG a_AT0 feast_NN1 for_PRP the_AT0 chapel_NN1 's_POS preferred_AJ0 cleaning_NN1 product_NN1 ,_PUN a_AT0 bacterium_NN1 called_VVN Serratia_NP0 ficaria_NP0 SH7_CRD ._SENT "_PUQ SH7_NP0 ate_VVD Alessandro_NP0 ,_PUN "_PUQ Monica_NP0 Bietti_NP0 ,_PUN former_DT0 director_NN1 of_PRF the_AT0 Medici_AJ0 Chapels_NN2 Museum_NN1 ,_PUN said_VVD as_CJS she_PNP stood_VVD in_PRP front_NN1 of_PRF the_AT0 now_AV0 gleaming_AJ0 tomb_NN1 ,_PUN surrounded_VVN by_PRP Michelangelos_NP0 ,_PUN dead_AJ0 Medicis_NN1 ,_PUN tourists_NN2 and_CJC an_AT0 all-woman_AJ0 team_NN1 of_PRF scientists_NN2 ,_PUN restorers_NN2 and_CJC historians_NN2 ._SENT Her_DPS team_NN1 used_VVD bacteria_NN2 that_CJT fed_VVD on_PRP glue_NN1 ,_PUN oil_NN1 and_CJC apparently_AV0 Alessandro_NP0 's_POS phosphates_NN2 as_PRP a_AT0 bioweapon_NN1 against_PRP centuries_NN2 of_PRF stains_NN2 ._SENT In_PRP November_NP0 2019_CRD ,_PUN the_AT0 museum_NN1 brought_VVN in_PRP Italy_NP0 's_POS National_AJ0 Research_NN1 Council_NN1 ,_PUN which_DTQ used_VVD infrared_AJ0 spectroscopy_NN1 that_CJT revealed_VVD calcite_NN1 ,_PUN silicate_NN1 and_CJC other_AJ0 ,_PUN more_AV0 organic_AJ0 ,_PUN remnants_NN2 on_PRP the_AT0 sculptures_NN2 and_CJC two_CRD tombs_NN2 that_CJT face_VVB one_PNI another_DT0 across_PRP the_AT0 New_AJ0 Sacristy_NN1 ._SENT That_DT0 provided_VVD a_AT0 key_AJ0 blueprint_NN1 for_PRP Anna_NP0 Rosa_NP0 Sprocati_NP0 ,_PUN a_AT0 biologist_NN1 at_PRP the_AT0 Italian_AJ0 National_AJ0 Agency_NN1 for_PRP New_AJ0 Technologies_NN2 ,_PUN to_TO0 choose_VVI the_AT0 most_AV0 appropriate_AJ0 bacteria_NN2 from_PRP a_AT0 collection_NN1 of_PRF nearly_AV0 1_CRD ,_PUN 000_CRD strains_NN2 ,_PUN usually_AV0 used_VVN to_TO0 break_VVI down_AVP petroleum_NN1 in_PRP oil_NN1 spills_NN2 or_CJC to_TO0 reduce_VVI the_AT0 toxicity_NN1 of_PRF heavy_AJ0 metals_NN2 ._SENT 
