The door of the house which faces east is broken. which 引导的定语从句修饰谁?

问题描述:

The door of the house which faces east is broken. which 引导的定语从句修饰谁?
想要用定语从句修饰house应该怎么用?修饰door又应该怎么用?

修饰the door.which 充当从句的主语
The door of the house which faces east is broken修饰door
this is the house whose door faces east broken定语从句修饰house