id,name,age,score,city,note
1,Alice,30,91.5,Oslo,hello
2,Bob,25,87.0,Bergen,"hello, world"
3,Charlie,,92.3,Trondheim,
4,Alice,30,91.5,Oslo,"quoted ""text"""
5,David,42,,Stavanger,
6,Eve,25,87.0,Bergen,"multiple words"
7,Frank,0,0.0,Oslo,zero
8,Grace,-5,-12.75,Tromsø,negative
9,Henry,100,99.99,Ålesund,unicode
10,Ivy,25,87.0,Bergen,duplicate