( `` ( ( Structure ( of ( Plant ( Cell ( Walls XLIII ) ) ) ) ) . ) )
(ROOT (S (`` ``) (VP (VB Structure) (PP (IN of) (NP (NNP Plant) (NNP Cell) (NNPS Walls) (NNP XLIII)))) (. .)))
"Structure of Plant Cell Walls XLIII.
(ROOT (S (NP (DT A) (NN cell) (NN wall)) (VP (VBZ is) (RB not) (ADJP (JJ present) (PP (IN in) (NP (NN animal) (NNS cells))))) (. .)))