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The chemical symbol of rutherfordium is Rf.
Yes, there is. You can watch in here:
http://www.gogoanime.com/to-love-ru-darkness-episode-1
Ru Ba Ru was created on 2008-09-12.
'Ru' is る
The Rosie Show - 2011 Ru Paul and the Commodores 1-42 was released on:
USA: 3 January 2012