* Yo-han-es: The "o" in "Johannes" is pronounced like the "o" in "go".
* Gärt-ner: The "ä" in "Gärtner" is pronounced like the "e" in "bed". The "r" is rolled.
Tips:
* German pronunciation: It's important to note that the pronunciation is based on German phonetics.
* Stress: The emphasis is placed on the first syllable of each name.
Let me know if you have any other pronunciations you'd like help with!