( ( A ( sponge endoskeleton ) ) ( ( ( consists ( of ( ( short ( , ( sharp rods ) ) ) ( called spicules ) ) ) ) ( -LRB- ( ( see ( Figure 18.2 ) ) -RRB- ) ) ) . ) )
(ROOT (S (NP (DT A) (JJ sponge) (NN endoskeleton)) (VP (VBZ consists) (PP (IN of) (NP (NP (JJ short) (, ,) (JJ sharp) (NNS rods)) (VP (VBN called) (NP (NNS spicules))))) (PRN (-LRB- -LRB-) (S (VP (VB see) (NP (NNP Figure) (CD 18.2)))) (-RRB- -RRB-))) (. .)))
A sponge endoskeleton consists of short, sharp rods called spicules (see Figure 18.2).
(ROOT (S (NP (NP (DT The) (JJ sharp) (NNS projections)) (SBAR (IN that) (S (NP (JJ specialized) (NNS cells)) (VP (VBP grow))))) (VP (VBP are) (VP (VBN called) (NP (NNS spicules)))) (. .)))