( I ( ( grind ( until ( ( most ( tissue fragments ) ) ( are ( very small ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBD grind) (SBAR (IN until) (S (NP (JJS most) (NN tissue) (NNS fragments)) (VP (VBP are) (ADJP (RB very) (JJ small)))))) (. .)))
I grind until most tissue fragments are very small.
(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))))))) (. .)))