Voice recognition in iOS7 no longer recognizes the spoken word "period" as a punctuation mark. Any solution to this?

Question

iOS7 changed a feature of voice recognition.
When composing message using voice recognition (not Siri, just the "microphone" icon typically in either iMessage or e-mail) the voice recognition app recognizes spoken words like "comma", "question mark" and "exclamation mark" as punctuation.  For example if you said "Hello exclamation mark how are you question mark", the voice recognition system would type "Hello!  How are you?"  This is perfect and works very well.
Prior to iOS7 it used to recognize the word "period" as well.  If you said "Hello period  how are you question mark" it would respond with: "Hello.  How are you?" Now, after the iOS7 update, if you say "Hello period how are you question mark", you get "Hello period how are you?" typed back to you.  I've tried saying "dot" instead, and it will place a dot in the text, but it doesn't recognize it as a period: "Hello.how are you?"
Is there some setting I'm missing?  Is there a different voice command to get a period?
Edit:  UPDATE.  **SOLVED**  Apparently there are two ways this can happen.  1.) UK Keyboard or 2.) UK Siri.   I did not have the English (UK) keyboard enabled - just plain "English", but I had turned on the English (UK) Siri because I thought he sounded a little like Jarvis.  Anyway, apparently, that's what did it.  As soon as I turned Siri back to English (United States) saying "period" works.  Note:  If you want to keep the UK Siri, you have to say "Full Stop" to get a period.

Answer 1

Thanks for the heads up!  That was driving me nuts, too.  I was using the Australian English because she sounded cuter than Siri.  "Full stop" works for Australian as well.
Now if I can just figure out why the voice to text suddenly can't understand a word or two in almost every long sentence.  It almost comical how badly the translation suddenly works.  I hope it isn't due to the Australian choice as well.  I've already gotten used to her...  : /