* They refers to 'history books.'
1. They are on the 2nd floor in Section D.
2. They are in Section D on the 2nd floor.
(Are both the same? According to the word order rule, which one is right?)
1. They are on the 2nd floor in Section D.
2. They are in Section D on the 2nd floor.
(Are both the same? According to the word order rule, which one is right?)