( ( The arena ) ( ( is ( ( ( a ( ( square shaped ) area ) ) , ) ( bounded ( by ( walls ( made ( of symbols ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN arena)) (VP (VBZ is) (NP (NP (DT a) (ADJP (RB square) (JJ shaped)) (NN area)) (, ,) (VP (VBN bounded) (PP (IN by) (NP (NP (NNS walls)) (VP (VBN made) (PP (IN of) (NP (NNS symbols))))))))) (. .)))
The arena is a square shaped area, bounded by walls made of symbols.
(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))) (. .)))