    Sentence ‘1: A: postal distribution center  "S four. ‘anthrax-laced letters passed  thr    with. chlorine dioxidé gas as’ crews. wound    ugh two. years igo ‘was. fuinigated    up «the ".decortamination, -process _ this’    Weekend    Sentence ‘2:Workers leaning Up.a ‘postal  distribution center .where four’ ietters  Idced’ with ‘Gnthtax. had.-passed. through  two years ago planried to.icomplete the  fumigation’ operation early Sunday