( Bivalves ( ( are ( mollusks ( with ( ( ( two shells ) , ) ( including ( clams ( , ( oysters ( , ( ( scallops and ) brachiopods ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Bivalves)) (VP (VBP are) (ADJP (JJ mollusks) (PP (IN with) (NP (NP (CD two) (NNS shells)) (, ,) (PP (VBG including) (NP (NNS clams) (, ,) (NNS oysters) (, ,) (NNS scallops) (CC and) (NNS brachiopods))))))) (. .)))
Bivalves are mollusks with two shells, including clams, oysters, scallops and brachiopods.
(ROOT (S (NP (DT A) (NN scallop)) (VP (VBZ is) (NP (DT a) (PRN (-LRB- -LRB-) (NP (NN n)) (-RRB- -RRB-)) (NN mollusk))) (. .)))