         Sentence 1:1 sin nat awaié of any stidie’ édamparing the mimber  ,0f Words. aa average pérson’ toulld expect to‘ hear spoken’ in'a    “sia dy 500 years ago vs. the’ numbér thitcan-be heard now.  Dui the ircrease surelyis vast:         Sentence 2:-Itiough ve tiever-réad any. teseaich  wgarding. low  ‘many words people heatd back then’ conpsred 10 now, F'm-suré  the number has gone'up.    