( ( All Arthropods ) ( ( ( ( bear ( ( the ( common characteristics ) ) ( of ( ( the lack ) ( of ( an ( internal skeleton ) ) ) ) ) ) ) , ) ( ( ( ( ( ( marking them ) ( ( as invertebrates ) , ) ) ( -LRB- ( obviously -RRB- ) ) ) ( and ( a ( ( hard ( , articulated ) ) exoskeleton ) ) ) ) , ) ( surrounding ( their ( soft tissues ) ) ) ) ) . ) )
(ROOT (S (NP (DT All) (NNPS Arthropods)) (VP (VBP bear) (NP (NP (DT the) (JJ common) (NNS characteristics)) (PP (IN of) (NP (NP (DT the) (NN lack)) (PP (IN of) (NP (DT an) (JJ internal) (NN skeleton)))))) (, ,) (S (VP (VP (VBG marking) (NP (PRP them)) (PP (IN as) (NP (NNS invertebrates)) (, ,)) (PRN (-LRB- -LRB-) (ADVP (RB obviously)) (-RRB- -RRB-)) (FRAG (CC and) (NP (DT a) (ADJP (JJ hard) (, ,) (JJ articulated)) (NN exoskeleton)))) (, ,) (VP (VBG surrounding) (NP (PRP$ their) (JJ soft) (NNS tissues)))))) (. .)))
All Arthropods bear the common characteristics of the lack of an internal skeleton, marking them as invertebrates, (obviously) and a hard, articulated exoskeleton, surrounding their soft tissues.
(ROOT (S (NP (PRP You)) (VP (VBP call) (NP (NP (DT the) (JJ hard) (NN case)) (SBAR (WHNP (WDT that)) (S (VP (VBZ surrounds) (NP (NP (DT the) (JJ soft) (NNS parts)) (PP (IN of) (NP (NP (DT some) (NNS animals)) (NP (DT the) (NN exoskeleton)))))))))) (. .)))