って... (topic)
文法の解説は英語です。
用法
(S (plain form) / N plain form ~~-だ~~) + って... is used when:
Asking about something X that the speaker does not know much about
When the speaker is describing nature
例文
ねえ、函館って、どんな町
Say, what kind of city is Hakodate
メンタルトレーニングって面白い
This 'mental training' is fun