 The leaves of the papyrus were dried and used by Ancient Egyptians as a form of paper.
( ( ( The leaves ) ( of ( the papyrus ) ) ) ( ( were ( ( ( dried and ) used ) ( by ( ( Ancient Egyptians ) ( as ( ( a form ) ( of paper ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NNS leaves)) (PP (IN of) (NP (DT the) (NNS papyrus)))) (VP (VBD were) (VP (VBN dried) (CC and) (VBN used) (PP (IN by) (NP (NP (NNP Ancient) (NNP Egyptians)) (PP (IN as) (NP (NP (DT a) (NN form)) (PP (IN of) (NP (NN paper))))))))) (. .)))
Papyrus paper was only used by wealthy Egyptians because it was so expensive.
( ( Papyrus paper ) ( ( ( was only ) ( ( used ( by ( wealthy Egyptians ) ) ) ( because ( it ( was ( so expensive ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Papyrus) (NN paper)) (VP (VBD was) (ADVP (RB only)) (VP (VBN used) (PP (IN by) (NP (JJ wealthy) (NNP Egyptians))) (SBAR (IN because) (S (NP (PRP it)) (VP (VBD was) (ADJP (RB so) (JJ expensive))))))) (. .)))