( ( Both ( ( ( the proton ) and ) neutron ) ) ( ( are ( made ( of ( three quarks ) ) ) ) . ) )
(ROOT (S (NP (DT Both) (NP (DT the) (NN proton)) (CC and) (NP (NN neutron))) (VP (VBP are) (VP (VBN made) (PP (IN of) (NP (CD three) (NNS quarks))))) (. .)))
Both the proton and neutron are made of three quarks.
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (CD three) (NNS quarks)) (PP (IN in) (NP (DT each) (NN proton) (CC and) (NN neutron))))) (. .)))