( ( Like ( the animal ) ) ( , ( ( this ( small cactus ) ) ( ( is ( ( ( ( ( covered ( by 2 ) ) '' ) ( to 3 ) ) '' ) spines ) ) . ) ) ) )
(ROOT (S (PP (IN Like) (NP (DT the) (NN animal))) (, ,) (NP (DT this) (JJ small) (NN cactus)) (VP (VBZ is) (VP (VBN covered) (PP (IN by) (NP (CD 2))) ('' '') (PP (TO to) (NP (CD 3))) ('' '') (ADVP (RB spines)))) (. .)))
Like the animal, this small cactus is covered by 2&quot; to 3&quot; spines.
(ROOT (S (NP (NP (DT The) (NNS spines)) (PP (IN of) (NP (DT a) (NN cactus)))) (VP (VBP help) (SBAR (S (NP (PRP it)) (VP (VBP survive) (SBAR (IN because) (S (NP (NNS spines)) (VP (VB protect) (NP (DT the) (NN cactus)) (PP (IN from) (NP (NNS animals)))))))))) (. .)))