( ( The ( gametophyte stage ) ) ( ( is ( dominant ( over ( ( the ( sporophyte stage ) ) ( in ( ( the ( liverworts ' ) ) ( life cycle ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ gametophyte) (NN stage)) (VP (VBZ is) (ADJP (JJ dominant) (PP (IN over) (NP (NP (DT the) (JJ sporophyte) (NN stage)) (PP (IN in) (NP (NP (DT the) (NNS liverworts) (POS ')) (NN life) (NN cycle))))))) (. .)))
The gametophyte stage is dominant over the sporophyte stage in the liverworts' life cycle.
(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))))))) (. .)))