3. 分类任务：给定以下10个歌曲名字和歌手，分类为摇滚、流行或乡村音乐。输出应包括每个歌曲对应的类别。
"Sweet Child O' Mine" - Guns N' Roses
"Shape of You" - Ed Sheeran
"Friends In Low Places" - Garth Brooks
"Stairway to Heaven" - Led Zeppelin
"Body Like A Back Road" - Sam Hunt
"Rolling in the Deep" - Adele
"Born to Run" - Bruce Springsteen
"Baby One More Time" - Britney Spears
"Don't Stop Believin'" - Journey
"Humble and Kind" - Tim McGraw
"Sweet Child O' Mine" - 摇滚
"Shape of You" - 流行
"Friends In Low Places" - 乡村音乐
"Stairway to Heaven" - 摇滚
"Body Like A Back Road" - 乡村音乐
"Rolling in the Deep" - 流行
"Born to Run" - 摇滚
"Baby One More Time" - 流行
"Don't Stop Believin'" - 摇滚
"Humble and Kind" - 乡村音乐