( ( ( A sheet ) ( of cellulose ) ) ( ( acetate ( containing ( crystals ( of ( ( an ( iodine compound ) ) ( which ( ( are all ) ( oriented ( in ( one direction ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT A) (NN sheet)) (PP (IN of) (NP (NN cellulose)))) (VP (VBP acetate) (S (VP (VBG containing) (NP (NP (NNS crystals)) (PP (IN of) (NP (NP (DT an) (JJ iodine) (NN compound)) (SBAR (WHNP (WDT which)) (S (VP (VBP are) (RB all) (ADJP (VBN oriented) (PP (IN in) (NP (CD one) (NN direction))))))))))))) (. .)))
A sheet of cellulose acetate containing crystals of an iodine compound which are all oriented in one direction.
(ROOT (S (NP (NNP Cellulose)) (VP (VP (VBZ is) (NP (NP (CD one)) (PP (IN of) (NP (NP (DT the) (ADJP (RBS most) (JJ common)) (JJ biochemical) (NNS compounds)) (PP (IN on) (NP (NN earth))))))) (CC and) (VP (VBZ is) (VP (VBN found) (PP (IN in) (NP (DT all) (NNS plants)))))) (. .)))