How to change the text " RATING: " in an article?

Hi,
I have a problem: I just want to show the stars and not
Rating: *****
I was looking in all the files of the archive, without success...
I want nothing instead of "rating : " or at least the possibility to change with a french word.
I was looking in the language file but I don't see anything...

you can see the example here: http://lesfrenchies.fr/drp/
On the mainpage, there is an article
Please apologize the appearance of the page, it's under dev! ;)

Thank you very much for your support! ;)
Pierre