unafraid to throw elbows when necessary 
(ROOT (ADJP (JJ unafraid) (S (VP (TO to) (VP (VB throw) (NP (NNS elbows)) (SBAR (WHADVP (WRB when)) (FRAG (ADJP (JJ necessary)))))))))
(ROOT (ADJP (JJ ) (S (VP (TO ) (VP (VB ) (NP (NNS )) (SBAR (WHADVP (WRB )) (FRAG (ADJP (JJ )))))))))