といえば
Usage
Speaking of - / Talk about a story or a thing registers in one's mind
Examples
これは昔話の絵本ですね。そうですね。あ、昔話といえば、昨日桃太郎の紙芝居を見ました。
This is a picture book about folkstales. Yeah it is, speaking of folkstales, I watched momo tarou's kamishibai yesterday.