Unfortunately, the presentation of his linguistic argument, where the author is clearly treading on more speculative ground than in those parts dealing with outright archaeology, where he is on more familiar territory, is disorganized and repetitious.
( Unfortunately ( , ( ( ( ( ( ( the presentation ) ( of ( his ( linguistic argument ) ) ) ) , ) ( where ( ( the author ) ( ( is clearly ) ( ( treading ( on ( ( more speculative ) ground ) ) ) ( than ( in ( ( those parts ) ( dealing ( with ( ( ( outright archaeology ) , ) ( where ( he ( is ( on ( ( more familiar ) territory ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) , ) ( ( is ( ( disorganized and ) repetitious ) ) . ) ) ) )
(ROOT (S (ADVP (RB Unfortunately)) (, ,) (NP (NP (DT the) (NN presentation)) (PP (IN of) (NP (PRP$ his) (JJ linguistic) (NN argument))) (, ,) (SBAR (WHADVP (WRB where)) (S (NP (DT the) (NN author)) (VP (VBZ is) (ADVP (RB clearly)) (VP (VBG treading) (PP (IN on) (NP (ADJP (RBR more) (JJ speculative)) (NN ground))) (PP (IN than) (IN in) (NP (NP (DT those) (NNS parts)) (VP (VBG dealing) (PP (IN with) (NP (NP (JJ outright) (NN archaeology)) (, ,) (SBAR (WHADVP (WRB where)) (S (NP (PRP he)) (VP (VBZ is) (PP (IN on) (NP (ADJP (RBR more) (JJ familiar)) (NN territory))))))))))))))) (, ,)) (VP (VBZ is) (ADJP (JJ disorganized) (CC and) (JJ repetitious))) (. .)))
The author has no clue what he is talking about.
( ( The author ) ( ( has ( ( no clue ) ( what ( he ( is ( talking about ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN author)) (VP (VBZ has) (NP (NP (DT no) (NN clue)) (SBAR (WHNP (WP what)) (S (NP (PRP he)) (VP (VBZ is) (VP (VBG talking) (IN about))))))) (. .)))