( ( b -RRB- ) ( ( Eukaryotic cells ) ( ( use ( ( internal membranes ) ( to ( segregate functions ) ) ) ) . ) ) )
(ROOT (S (LST (LS b) (-RRB- -RRB-)) (NP (JJ Eukaryotic) (NNS cells)) (VP (VBP use) (S (NP (JJ internal) (NNS membranes)) (VP (TO to) (VP (VB segregate) (NP (NNS functions)))))) (. .)))
b) Eukaryotic cells use internal membranes to segregate functions.
(ROOT (S (NP (JJ Eukaryotic) (NNS cells)) (VP (VBP have) (NP (NP (JJ internal) (NNS membranes)) (SBAR (WHNP (WDT that)) (S (VP (VBP compartmentalize) (NP (PRP$ their) (NNS functions))))))) (. .)))