The three roundest languages

--To read this post in Japanese, click here.

Here are the three most roundish languages, or writing systems.

Sinhala (spoken in Sri Lanka): ඉස්තුති බොහොම ස්තුතියි

Georgian (spoken in Georgia): მადლობა გადაგიხადოთ

Malayalam (spoken in India): നന്ദി  ഉപകാരം

Perhaps one of the three writing systems in Japanese is also roundish.
Japanese: ありがとうございます。
It is too familiar for me to see as shapes though.