[Requires free registration.
( ( -LSB- Requires ) ( ( free registration ) . ) )
(ROOT (S (NP (NNP -LSB-) (NNP Requires)) (VP (VBP free) (NP (NN registration))) (. .)))
The registration is free.
( ( The registration ) ( ( is free ) . ) )
(ROOT (S (NP (DT The) (NN registration)) (VP (VBZ is) (ADJP (JJ free))) (. .)))