( ( They ( ( are ( ( a class ) ( of ( joint-legged ( invertebrate animals ) ) ) ) ) . ) ) ( Arachnidia ( ( comes ( from ( ( the ( Greek word ) ) ( ( spider ( . Arachnida ) ) ( has ( ( ( ( ( ( 4 pairs ) ( of ( legs ( . Arachnids ) ) ) ) ( can ( be ( distinguished ( by ( ( ( the fact ) ( they ( have ( ( ( no wings ) and ) ( no antennas ) ) ) ) ) . ) ) ) ) ) ) ( They ( ( are ( mostly carnivorous ) ) . ) ) ) ( They ( ( usually ( lay eggs ) ) . ) ) ) ( They ( have ( ( 2 kinds ) ( of eyes ) ) ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (S (NP (PRP They)) (VP (VBP are) (NP (NP (DT a) (NN class)) (PP (IN of) (NP (JJ joint-legged) (NN invertebrate) (NNS animals))))) (. .)) (NP (NNP Arachnidia)) (VP (VBZ comes) (PP (IN from) (NP (NP (DT the) (JJ Greek) (NN word)) (SBAR (S (NP (NN spider) (. .) (NNP Arachnida)) (VP (VBZ has) (S (S (NP (NP (CD 4) (NNS pairs)) (PP (IN of) (NP (NNP legs) (. .) (NNP Arachnids)))) (VP (MD can) (VP (VB be) (ADJP (JJ distinguished) (PP (IN by) (FRAG (NP (NP (DT the) (NN fact)) (SBAR (S (NP (PRP they)) (VP (VBP have) (NP (NP (DT no) (NNS wings)) (CC and) (NP (DT no) (NNS antennas)))))) (. .)))))))) (S (NP (PRP They)) (VP (VBP are) (ADJP (RB mostly) (JJ carnivorous))) (. .)) (S (NP (PRP They)) (VP (ADVP (RB usually)) (VBD lay) (NP (NNS eggs))) (. .)) (S (NP (PRP They)) (VP (VBP have) (NP (NP (CD 2) (NNS kinds)) (PP (IN of) (NP (NNS eyes))))))))))))) (. .)))
They are a class of joint-legged invertebrate animals. Arachnidia comes from the Greek word spider. Arachnida has 4 pairs of legs. Arachnids can be distinguished by the fact they have no wings and no antennas. They are mostly carnivorous. They usually lay eggs. They have 2 kinds of eyes.
(ROOT (S (SBAR (IN While) (FRAG (ADJP (JJ similar) (PP (TO to) (NP (NNS insects)))))) (, ,) (NP (NNS arachnids)) (VP (VBP are) (NP (NP (JJ eight-legged) (NNS invertebrates)) (SBAR (WHNP (WDT that)) (S (VP (VBP lack) (NP (NN antennae) (CC or) (NNS wings))))))) (. .)))