( ( A pellicle ) ( ( is ( lacking ( in ( cell structure ) ) ) ) . ) )
(ROOT (S (NP (DT A) (NN pellicle)) (VP (VBZ is) (VP (VBG lacking) (PP (IN in) (NP (NN cell) (NN structure))))) (. .)))
A pellicle is lacking in cell structure.
(ROOT (S (NP (NNP Plant) (NNS cells)) (VP (VBP have) (NP (NP (NNS structures)) (SBAR (WHNP (WDT that) (NN animal) (NNS cells)) (S (VP (VBP lack)))))) (. .)))