( ( The ( strong ( nuclear force ) ) ) ( ( ( binds together ) ( ( ( elementary particles ) ( known ( as ( ( ( ( quarks and ) gluons ) , ) ( which ( ( ( make up ) ( ( the ( ( protons and ) neutrons ) ) ( in ( the ( atomic nucleus ) ) ) ) ) ( , ( ( as ( well as ) ) ( ( less stable ) , ) ) ) ) ) ) ) ) ) ( ( ( more exotic ) forms ) ( of matter ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ strong) (JJ nuclear) (NN force)) (VP (VBZ binds) (PRT (RP together)) (NP (NP (NP (JJ elementary) (NNS particles)) (VP (VBN known) (PP (IN as) (NP (NP (NNS quarks) (CC and) (NNS gluons)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBP make) (PRT (RP up)) (NP (NP (DT the) (NNS protons) (CC and) (NNS neutrons)) (PP (IN in) (NP (DT the) (JJ atomic) (NN nucleus)))) (PRN (, ,) (CONJP (RB as) (RB well) (IN as)) (ADJP (RBR less) (JJ stable)) (, ,))))))))) (NP (NP (ADJP (RBR more) (JJ exotic)) (NNS forms)) (PP (IN of) (NP (NN matter)))))) (. .)))
The strong nuclear force binds together elementary particles known as quarks and gluons, which make up the protons and neutrons in the atomic nucleus, as well as less stable, more exotic forms of matter.
(ROOT (S (NP (NNS Protons) (CC and) (NNS neutrons)) (VP (VBP are) (VP (VBN made) (PP (IN of) (NP (NP (NNS quarks)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBP are) (NP (NP (JJ fundamental) (NNS particles)) (PP (IN of) (NP (NN matter))))))))))) (. .)))