( ( List structures ) ( ( found ( ( ( ( in ( animal cells ) ) and ) not ) ( in ( plant cells ) ) ) ) . ) )
(ROOT (S (NP (NN List) (NNS structures)) (VP (VBD found) (PP (PP (IN in) (NP (NN animal) (NNS cells))) (CC and) (RB not) (PP (IN in) (NP (NN plant) (NNS cells))))) (. .)))
List structures found in animal cells and not in plant cells.
(ROOT (S (NP (DT A) (NN cell) (NN wall)) (VP (VBZ is) (VP (VBN found) (PP (PP (IN in) (NP (DT a) (NN plant) (NN cell))) (CONJP (CC but) (RB not)) (PP (IN in) (NP (DT an) (NN animal) (NN cell)))))) (. .)))
A cell wall is found in a plant cell but not in an animal cell.