Original sentence: The digraphs lh and nh, used in the classical orthography, were adopted by the Orthography of Portuguese, most probably after Friar Gerald, a monk from Moissac, became bishop of Braga in Portugal in 1047 and played a major role in modernizing written Portuguese using classical Occitan norms
Edited sentence: The digraphs lh and nh, used in the classical orthography, were adopted by the Orthography of Portuguese, most probably after Friar Gerald, a monk from Moissac, became bishop of Braga in Portugal in 1047 and played a major role in modernizing written Portuguese using classical Occitan norms, which may also explain why unstressed o's are rendered as /u/ in Portuguese