( ( The ( prostatic urethra ) ) ( ( is ( surrounded ( by ( the ( prostate gland ) ) ) ) ) ; ) )
(ROOT (S (NP (DT The) (JJ prostatic) (NN urethra)) (VP (VBZ is) (VP (VBN surrounded) (PP (IN by) (NP (DT the) (NN prostate) (NN gland))))) (: ;)))
The prostatic urethra is surrounded by the prostate gland;
(ROOT (S (NP (DT The) (NN prostate) (NN gland)) (VP (VBZ secretes) (NP (PRP$ its) (NNS products)) (ADVP (RB directly)) (PP (IN into) (NP (DT the) (NN urethra))) (PP (IN through) (NP (JJ several) (JJ small) (NNS ducts))))))