Learn Hardcore Turkish: Evrak listesi toplam beş kalemden oluşuyor. - The document list consists of a total of five items.

evrak = “document(s)”
liste = “list”
-si on liste is the 3rd-person singular possessive suffix, so listesi = “its list” or “the list of …”
Together evrak listesi literally means “the list of documents,” i.e. “document list.”

What is the role of toplam in this sentence?

toplam means “in total” or “overall.” It qualifies the number that follows, indicating you’re giving the total count:

toplam beş kalem = “a total of five items.”

What does kalem mean here? I thought kalem was “pen.”

In addition to “pen,” kalem can mean “item,” “entry,” or “piece” in lists or inventories. So beş kalem here = “five items.”

Why do we see -den on kalem, i.e. kalemden?

The verb oluşmak (“to consist of,” “to be formed from”) takes the elements in the ablative case (–den/–dan). So you say “beş kalem-den oluşuyor” = “it consists of five items.”

What does oluşuyor mean and why this form?

oluşmak = “to form,” “to arise,” “to consist of.”
oluşuyor is the present continuous (–yor) 3rd-person singular: “(it) is formed/consists of.”

Could we say “Evrak listesi toplam beş kalem içeriyor” instead?

Yes. içermek = “to include,” so “içeriyor” = “includes.” Both are correct:

oluşuyor focuses on how the list is made up.
içeriyor focuses on what the list includes.

Is it possible to omit toplam?

Yes. Without toplam you simply say “Evrak listesi beş kalemden oluşuyor.” That still means “The document list consists of five items,” but you lose the explicit “in total” nuance.

Can I use tane or parça instead of kalem?

Absolutely. You could say:

Evrak listesi toplam beş tane parçadan oluşuyor.
Evrak listesi beş parçadan oluşuyor.
These all convey “five pieces/items,” though kalem is very common in formal lists.