问个语法问题。。

Question

They give prizes to the classes that make the least garbage!

This is a bag full of garbage.

这两句是个什么句子。如何从语法上解释？
make the least garbage修饰classes，这个从语法上如何说明的？后一句也是full of garbage修饰bag。

Answer 1

第一个是宾语从句,that make the least garbage是修饰the classes的.

第二个是 补足语修饰宾语
This is a bag (full of garbage)
full of garbage是bag的补足语,补充说明bag的状态.

Answer 2

第一个是主谓宾，第二个是主系表。