of a physician who needs to heal himself 
(ROOT (PP (IN of) (NP (NP (DT a) (NN physician)) (SBAR (WHNP (WP who)) (S (VP (VBZ needs) (S (VP (TO to) (VP (VB heal) (NP (PRP himself)))))))))))
(ROOT (PP (IN ) (NP (NP (DT ) (NN )) (SBAR (WHNP (WP )) (S (VP (VBZ ) (S (VP (TO ) (VP (VB ) (NP (PRP )))))))))))