[lemma=inscription] [tag=VBD] [lemma=clean] [!□]
[lemma=inscription] [tag=VBD] [lemma=clean] [!□=□]
[lemma=inscription] [tag=VBD] [lemma=clean] [!(□ | □)]
" The same gray patina is found also within some of the letters , " he wrote , " although the inscription was cleaned and the patina is therefore absent from several letters .