( ( Prepare ( plant tissue ) ) ( ( extracts ( by ( ( ( grinding ( the ( appropriate tissue ) ) ) ( in ( ( a ( few milliliters ) ) ( of solvent ) ) ) ) ( in ( a ( ( mortar and ) pestle ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Prepare) (NN plant) (NN tissue)) (VP (VBZ extracts) (PP (IN by) (S (VP (VBG grinding) (NP (DT the) (JJ appropriate) (NN tissue)) (PP (IN in) (NP (NP (DT a) (JJ few) (NNS milliliters)) (PP (IN of) (ADJP (JJ solvent))))) (PP (IN in) (NP (DT a) (NN mortar) (CC and) (NN pestle))))))) (. .)))
Prepare plant tissue extracts by grinding the appropriate tissue in a few milliliters of solvent in a mortar and pestle.
(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))))))) (. .)))