You are given a sentence in Arabic. Your job is to translate the Arabic sentence into Portugese.

Let me give you an example: ولكن ماهي حقوق الإنسان ؟
The answer to this example can be: Mas o que são direitos humanos?
Here is why: The Arabic sentence is correctly translated into Portugese, because the meaning is preserved.

OK. solve this:
الأوكسجين الذى ينبعث من هذة الستروماتوليتس هو الذى نتنفسه اليوم.
Answer:
O oxigénio exalado pelos estromatólitos é o que todos respiramos hoje.