方位词 Location words

The words “里边”，“外边”，“左边”，“右边”，“上边”，“下边”，“前边”，“后边”，“东边”，“西边”，“南边” and “北边” are all nouns expressing direction and location and can function as subject, object, and attributive. They can also be modified by attributives. For example:
里边是什么？
邮局在前边。
左边的床是我的。
图书馆外边有很多人。
Notes:
(1) when a location word functions as an attributive, the word “的”must be placed after it. For example:“上边的报，前边的花园”。 When a location word function as a central word, “的”is not usually used before it. For example：“厨房里边，银行北边”。
(2) the word “里边”cannot be used after the name of a country, a place or a workplace. For example, one may only say “在中国/北京”，but we cannot say “在中国/北京里边”； one may only say“我在中国银行工作”, but we cannot say “我在中国银行里边工作”。