Take the sentence,

Sütyenini çIkardIgInda, o tahrik oldu.

As written, the sentence could mean...

"When he [or she or it] removed his [or her or its] bra, then she [or he or it] became aroused".

But due to the context, there isn't any doubt that the sentence should read,

"When she removed her bra, then he became aroused." ...uh, there isn't any doubt, is there?

Take the previous sentence again...

Sütyenini çIkardIgInda, o tahrik oldu.

If we add the words kadIn; woman and erkek; man to the sentence, then there really is no doubt what is meant.

KadIn sütyenini cIkardIgInda, erkek tahrik oldu.

When the woman removed her bra, then the man became aroused.

For example, if we two Turkish speakers are chatting and I see a spider crawling up your arm, I can say Kolunda örümcek var; There's a spider on your arm. Since it's just the two of us, there's no chance I could be referring to anyone's arm but yours.

But, if there are three of us chatting and I say Kolunda örümcek var, it's unclear whether I mean your arm or the arm of the woman standing next to you.

To clear the matter up, I just need to add a personal pronoun to the sentence. So if I say, "Senin kolunda örümcek var," then it's your arm I'm talking about. And if I say, "Onun kolunda örümcek var, then it's her arm that's about to get stung. Ouch!

For example, karIn; belly requires no punctuation to understand it's meaning -- it stands on it's own. But strategic use of apostrophe may be useful in clarifying the meaning of the words kar'In; of the snow and karI'n; your wife.

The apostrophes can also come in handy to differentiate Arabic word-borrowings from common Turkish word formations. For example... if we use telin (without apostrophe) for the borrowed Arabic word meaning damnation, then let's use tel'in -- with apostrophe -- to mean of the wire.

We should point out plainly that using apostrophes -- as we advocate here -- is not standard Turkish. It's just a tool for us English speakers to help us clarify ambiguous Turkish word formations. If we can ever become fluent in the language, we might be able to drop these little helpers.

For example, place a comma (or a pause) as shown:
Oku baban gibi, esek olma...

-- to clearly mean,

"Read like your [good ole] dad does, don't be a donkey."

Because, if you neglect the comma (or the pause), so that the sentence is without clear punctuation (or without a verbal clue), such as...

...Oku baban gibi esek olma...

then the sentence can also be interpreted to mean,

"Read [for god's sake!], don't be a donkey like your father!"