( ( A macromolecule ) ( ( is ( ( a ( giant molecule ) ) ( which ( is ( contains ( ( a ( ( very large ) number ) ) ( of ( atoms ( linked ( by ( ( covalent bonds ) ( in ( a ( continuous structure ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT A) (NN macromolecule)) (VP (VBZ is) (NP (NP (DT a) (JJ giant) (NN molecule)) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (VP (VBZ contains) (NP (NP (DT a) (ADJP (RB very) (JJ large)) (NN number)) (PP (IN of) (NP (NP (NNS atoms)) (VP (VBN linked) (PP (IN by) (NP (NP (JJ covalent) (NNS bonds)) (PP (IN in) (NP (DT a) (JJ continuous) (NN structure))))))))))))))) (. .)))
A macromolecule is a giant molecule which is contains a very large number of atoms linked by covalent bonds in a continuous structure.
(ROOT (S (NP (DT Any) (JJ large) (NN molecule)) (VP (VBZ is) (VP (VBN referred) (PP (TO to) (NP (RB as) (DT a) (NN macromolecule))))) (. .)))