Usar "dieresis" en una oración

1. Dieresis never occurs in the case of thediphthongs ie

2. The same word without dieresis:

3. Lüisa, spelled with the dieresis for metrical reasons

4. Footnote 17: (return) Note that the dieresis mark is generally used in dieresis of two weakvowels, or of strong and weak vowels where the strong vowel is stressed