( ( The subject ) ( ( is ( presented ( ( 20 wood ) ( blocks ( ( ( ( ( ( ( ( ( ( varying ( in ( shape ( -LRB- ( ( triangle ( , ( circle ( , square ) ) ) ) -RRB- ) ) ) ) ) , ) colour ) , ) thickness ) , ) ( symbol ( printed ( on ( the surface ) ) ) ) ) , ) and ) size ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN subject)) (VP (VBZ is) (VP (VBN presented) (SBAR (S (NP (CD 20) (NN wood)) (VP (VBZ blocks) (NP (NP (VBG varying)) (PP (IN in) (NP (NP (NN shape)) (PRN (-LRB- -LRB-) (NP (NN triangle) (, ,) (NN circle) (, ,) (NN square)) (-RRB- -RRB-)))) (, ,) (NP (NN colour)) (, ,) (NP (NN thickness)) (, ,) (NP (NP (NN symbol)) (VP (VBN printed) (PP (IN on) (NP (DT the) (NN surface))))) (, ,) (CC and) (NP (NN size)))))))) (. .)))
The subject is presented 20 wood blocks varying in shape (triangle, circle, square), colour, thickness, symbol printed on the surface, and size.
(ROOT (S (PP (IN In) (NP (DT a) (JJ pedigree) (NN chart))) (NP (DT the) (NNS squares) (NN shape)) (VP (VBZ symbolizes) (NP (NNS males))) (. .)))