( C ( -RRB- ( ( fern sporophyte ) . ) ) )
(ROOT (S (LST (JJ C)) (-RRB- -RRB-) (VP (VB fern) (ADJP (JJ sporophyte))) (. .)))
C) fern sporophyte.
(ROOT (S (NP (DT The) (JJ sporophyte) (NN stage)) (VP (VBZ is) (NP (NP (DT the) (JJ dominant) (NN stage)) (PP (IN of) (NP (NP (DT the) (NN lifecycle)) (PP (IN of) (NP (DT a) (NN fern))))))) (. .)))