( ( ( ( Membrane ( transport processes ) ) , ) ( ( circulatory ( system ( ( transport phenomena ) ( , ( ( transport and ) distribution ) ) ) ) ) ( of drugs ) ) ) . )
(ROOT (NP (NP (JJ Membrane) (NN transport) (NNS processes)) (, ,) (NP (NP (JJ circulatory) (NN system) (NX (NX (NN transport) (NNS phenomena)) (, ,) (NX (NN transport)) (CC and) (NX (NN distribution)))) (PP (IN of) (NP (NNS drugs)))) (. .)))
Membrane transport processes, circulatory system transport phenomena, transport and distribution of drugs.
(ROOT (S (NP (NP (DT The) (JJ main) (NN function)) (PP (IN of) (NP (DT the) (JJ circulatory) (NN system)))) (VP (VBZ is) (S (VP (TO to) (VP (VB transport) (NP (NNS materials)))))) (. .)))