( Lysosomes ( ( are ( ( ( membrane-enclosed strucutres ) ( -LRB- ( organelles -RRB- ) ) ) ( in ( cells ( that ( contain ( digestive enzymes ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Lysosomes)) (VP (VBP are) (NP (NP (JJ membrane-enclosed) (NNS strucutres)) (PRN (-LRB- -LRB-) (NP (NNS organelles)) (-RRB- -RRB-)) (PP (IN in) (NP (NP (NNS cells)) (SBAR (WHNP (WDT that)) (S (VP (VBP contain) (NP (JJ digestive) (NNS enzymes))))))))) (. .)))
Lysosomes are membrane-enclosed strucutres (organelles) in cells that contain digestive enzymes.
(ROOT (S (NP (NP (DT All) (NNS types)) (PP (IN of) (NP (NNS cells)))) (VP (VBP are) (VP (VBN enclosed) (PP (IN by) (NP (DT a) (NN membrane))))) (. .)))
All types of cells are enclosed by a membrane.