N4 — outside your level filter
a whole clause put in front of a noun to describe it — Japanese has no relative pronoun and no change of word order
昨日買った本、もう読んじゃった。
kinou katta hon, mou yonjatta.
I've already finished the book I bought yesterday. casual
隣の家から、魚を焼く匂いがしてきた。
tonari no ie kara, sakana o yaku nioi ga shite kita.
The smell of grilling fish drifted over from next door. neutral
名詞修飾節
めいししゅうしょくせつmeishi shuushokusetsuN4neutral