( ( SCLEROBLAST ( ( A ( sponge cell ) ) ( that ( makes spicules ) ) ) ) . )
(ROOT (S (VP (VB SCLEROBLAST) (NP (NP (DT A) (JJ sponge) (NN cell)) (SBAR (WHNP (WDT that)) (S (VP (VBZ makes) (NP (NNS spicules))))))) (. .)))
SCLEROBLAST A sponge cell that makes spicules .
(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)))) (. .)))