The spelling of the word "Lionisio" is unique and requires a bit of explanation. The first syllable, "li", is pronounced with a long "e" sound. The next syllable, "o", should be pronounced with a long "o" sound. The final syllable, "nisio", follows the pattern of a stressed syllable being pronounced with the "ee" sound (like in "ski") and an unstressed syllable being pronounced with the "o" sound (like in "go"). Therefore, "Lionisio" should be pronounced as "lee-OH-nee-see-oh".