What would restoring the iPhone delete?

Hey guys, I've got an iPhone 4 and I'd like to sync it to a new iTunes library. Would restoring the phone's contents also delete all the messages and the notes? Can you list down the things that will be deleted if I restore?

Much obliged.

It would erase everything you have on it and return it to stock. Just make sure you have all your contacts, notes, and other things stored on icloud after you restore you can do a backup.