( ( At ( this time ) ) ( , ( there ( ( are ( ( ( about ( three ( times ( as many ) ) ) ) protons ) ( as neutrons ) ) ) . ) ) ) )
(ROOT (S (PP (IN At) (NP (DT this) (NN time))) (, ,) (NP (EX there)) (VP (VBP are) (NP (NP (QP (RB about) (CD three) (NNS times) (IN as) (JJ many)) (NNS protons)) (PP (IN as) (NP (NNS neutrons))))) (. .)))
At this time, there are about three times as many protons as neutrons.
(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))))) (. .)))