( ( ( ( 2 ( Iron ( Solenoid ( Cores ( Miscellaneous parts ) ) ) ) ) , ) ( ( screws , ) ( ( ( ( bolts , ) wire ) , ) etc. ) ) ) . )
(ROOT (NP (NP (CD 2) (NNP Iron) (NNP Solenoid) (NNPS Cores) (NNP Miscellaneous) (NNS parts)) (, ,) (NP (NP (NNS screws)) (, ,) (NP (NP (NNS bolts)) (, ,) (NP (NN wire)) (, ,) (FW etc.))) (. .)))
2 Iron Solenoid Cores Miscellaneous parts, screws, bolts, wire, etc.
(ROOT (S (NP (DT An) (NN electormagnet)) (VP (VBZ is) (NP (NP (DT a) (NN piece)) (PP (IN of) (NP (NP (NN iron)) (PP (IN inside) (NP (DT a) (NN solenoid))))))) (. .)))