( Generally ( , ( ( nervous tissue ) ( ( is ( categorized ( into ( ( four types ) ( of tissue ) ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB Generally)) (, ,) (NP (JJ nervous) (NN tissue)) (VP (VBZ is) (VP (VBN categorized) (PP (IN into) (NP (NP (CD four) (NNS types)) (PP (IN of) (NP (NN tissue))))))) (. .)))
Generally, nervous tissue is categorized into four types of tissue.
(ROOT (S (NP (JJ Only) (NNS animals)) (VP (VBP have) (NP (NP (NN muscle) (NN tissue)) (CC and) (NP (JJ nervous) (NN tissue)))) (. .)))
Only animals have muscle tissue and nervous tissue.