which is just a waste of money.有which的肯定句,是什么句形?

问题描述:

which is just a waste of money.有which的肯定句,是什么句形?

定语从句

这个应该是定语从句,前面应该还有一个句子.
例如 I spent two hundred yuan on the book,which is just a waste of money.
我花了200块钱买了这本书,真是浪费钱啊.