( ( Plant material ) ( ( is ( ( the ( ( most common ) tissue ) ) ( preserved ( in ( this manor ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Plant) (NN material)) (VP (VBZ is) (NP (NP (DT the) (ADJP (RBS most) (JJ common)) (NN tissue)) (VP (VBN preserved) (PP (IN in) (NP (DT this) (NN manor)))))) (. .)))
Plant material is the most common tissue preserved in this manor.
(ROOT (S (NP (NN Ground) (NN tissue)) (VP (VBZ makes) (PRT (RP up)) (NP (NP (JJS most)) (PP (IN of) (NP (NP (DT the) (NN inside)) (PP (IN of) (NP (DT a) (NN plant))))))) (. .)))