Learn Turkish: Fakülte öğrencileri kampüs kütüphanesinin kapısında bekledi. - The faculty students waited at the door of the campus library.

It links three nouns: kampüs (campus), kütüphane (library), and kapı (door). First, we form the two-word compound for campus library: kampüs kütüphanesi. Then, to say the door OF that library, we add the genitive suffix -nin to the whole first compound, and the possessive suffix -sı to kapı, giving us kampüs kütüphanesinin kapısı.

Why is there an -n- in kapısında?

The word is made of kapı (door) + possessive -sı + locative -da (at). In Turkish, whenever you add a case ending like -da right after a third-person possessive suffix, you must insert a buffer -n- between them. That gives us kapısında.

Is Fakülte öğrencileri part of the chain noun compound?

No, this sentence actually has two separate noun compounds. Fakülte öğrencileri is a standard two-noun compound meaning faculty students, which acts as the subject of the sentence. The chain noun compound is kampüs kütüphanesinin kapısı, which tells us the location.

Since the subject öğrencileri is plural, why is the verb just bekledi instead of beklediler?