( ( ( Almost 93 ) ( per ( cent ( of ( ( today 's ) plants ) ) ) ) ) ( ( have ( vascular tissue ) ) . ) )
(ROOT (S (NP (NP (QP (RB Almost) (CD 93))) (PP (IN per) (NP (NP (NN cent)) (PP (IN of) (NP (NP (NN today) (POS 's)) (NNS plants)))))) (VP (VBP have) (NP (NN vascular) (NN tissue))) (. .)))
Almost 93 per cent of today's plants have vascular tissue.
(ROOT (S (NP (NP (JJ Present-day) (NNS plants)) (SBAR (WHNP (WDT that)) (S (VP (VBP have) (NP (DT a) (JJ complex) (NN vascular) (NN tissue) (NN system)))))) (VP (VBP are) (VP (VBN called) (NP (NN vasuluar) (NNS plants)))) (. .)))