The castle itself comprises an early 17th-century tower house, restored with Irish oak from the park which is held together without a single nail.
( ( The castle ) ( ( ( itself ( comprises ( an ( early ( 17th-century ( tower house ) ) ) ) ) ) , ) ( ( ( restored ( with ( Irish oak ) ) ) ( from ( ( the park ) ( which ( is ( ( held together ) ( without ( a ( single nail ) ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (NP (DT The) (NN castle)) (PRN (S (NP (PRP itself)) (VP (VBZ comprises) (NP (DT an) (JJ early) (JJ 17th-century) (NN tower) (NN house)))) (, ,)) (VP (VBD restored) (PP (IN with) (NP (JJ Irish) (NN oak))) (PP (IN from) (NP (NP (DT the) (NN park)) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (VP (VBN held) (ADVP (RB together)) (PP (IN without) (NP (DT a) (JJ single) (NN nail)))))))))) (. .)))
The castle itself does not contain any early 17th-century tower houses.
( ( The castle ) ( itself ( ( ( does not ) ( contain ( any ( early ( 17th-century ( tower houses ) ) ) ) ) ) . ) ) )
(ROOT (S (NP (DT The) (NN castle)) (ADVP (PRP itself)) (VP (VBZ does) (RB not) (VP (VB contain) (NP (DT any) (JJ early) (JJ 17th-century) (NN tower) (NNS houses)))) (. .)))