( ( As arachnids ) ( , ( scorpions ( ( ( have mouthparts ) ( called ( ( ( ( ( ( chelicerae ( -LRB- ( jaws -RRB- ) ) ) , ) ( ( a pair ) ( of ( pedipalps ( -LRB- ( pinchers -RRB- ) ) ) ) ) ) , ) and ) ( ( four pairs ) ( of legs ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN As) (NP (NNS arachnids))) (, ,) (NP (NNS scorpions)) (VP (VBP have) (ADVP (RB mouthparts)) (VP (VBN called) (NP (NP (JJ chelicerae) (-LRB- -LRB-) (NNS jaws) (-RRB- -RRB-)) (, ,) (NP (NP (DT a) (NN pair)) (PP (IN of) (NP (NP (NNS pedipalps)) (PRN (-LRB- -LRB-) (NP (NNS pinchers)) (-RRB- -RRB-))))) (, ,) (CC and) (NP (NP (CD four) (NNS pairs)) (PP (IN of) (NP (NNS legs))))))) (. .)))
As arachnids, scorpions have mouthparts called chelicerae (jaws), a pair of pedipalps (pinchers), and four pairs of legs.
(ROOT (S (NP (DT A) (PRN (-LRB- -LRB-) (NP (NN n)) (-RRB- -RRB-)) (NN arachnid)) (VP (VBZ has) (NP (NP (JJ additional) (NNS appendages)) (VP (VBN called) (NP (NP (DT the) (NN chelicerae)) (CC and) (NP (DT the) (NNS pedipalps)))))) (. .)))