"I think about Europe."
Translation:Я думаю о Европе.
Just like in English, how we learn the vowels are "A, E, I, O, U, and sometimes Y," it's similar here. Y is a semivowel and the Russian E is extremely similar. It's only a vowel when it's making an "ee" sound (like in the words bee and key) and it's just a semivowel when it starts with that "ye" sound. So for purposes like this, It would count as a consonant since it's not a full vowel sound.