"Is samsung a country hahahahaha" you guys know this is for getting used to korean pronunciation, right? Why repeat the same joke in 30 comments instead of studying or streaming song you enjoy? It's random bc is teaching you, it never said it's about countries or cities.
My background is Korean but right now, I am living in Australia. If "ㅇ" comes with which of these followings, "ㅏ, ㅑ, ㅓ, ㅕ, ㅗ, ㅛ, ㅜ, ㅠ, ㅐ, ㅔ, ㅟ, ㅙ, or ㅣ" then, it only makes the sound of the vowel. The vowels are the Korean letters in the "".