( ( ( ( ( Structure and ) function ) ( of ( ( ( ( ( ( basic ( cell types ) ) , ) tissues ) , ) and ) organs ) ) ) ( of ( vascular plants ) ) ) . )
(ROOT (NP (NP (NN Structure) (CC and) (NN function)) (PP (IN of) (NP (NP (JJ basic) (NN cell) (NNS types)) (, ,) (NP (NNS tissues)) (, ,) (CC and) (NP (NNS organs)))) (PP (IN of) (NP (NN vascular) (NNS plants))) (. .)))
Structure and function of basic cell types, tissues, and organs of vascular plants.
(ROOT (S (NP (DT A) (PRN (-LRB- -LRB-) (NP (NN n)) (-RRB- -RRB-)) (NN organ)) (VP (VBZ is) (NP (NP (DT a) (NN structure)) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (VP (VBN composed) (PP (IN of) (NP (NP (QP (CD one) (CC or) (JJR more)) (NNS types)) (PP (IN of) (NP (NNS tissues))))))))))) (. .)))
A(n) organ is a structure that is composed of one or more types of tissues.