A Mystery.... Who can solve it?

Hi everybody...

I'm new blogger and i liked this blog a lot coz all the bloggers are cooooool...i've been reading your posts since i new this blog and i tried to create my own blog, but it takes me a lot of time to create it...Don't ask me why!!

OK... i have a mystery that i'd like to share it with you and i hope you solve it coz i really don't know the solution and it drives me crazy...

here it is...

* Fahad/Hamad/Saad/Raad

*doctor/engineer/journalist/lawyer.

NOTE: they are not in order.

1- Hamad and the lawyer have never seen Fahad before.

2- Saad and the journalist are friends.

3- Fahad and the engineer live at the same area.

4- The doctor treated Raad and the journalist before.

WHAT IS THE OCCUPATION OF EACH PERSON?

I'm waiting for your solutions....