( ( ( 4 Top ) ( at Hadron ) ) ( ( Colliders ( ( ( ( ( The decay ) ( of ( ( a ( top ( quark results ) ) ) ( in ( six jets ) ) ) ) ) , ) or ) ( ( ( ( ( ( ( four jets ) , ) ( a lepton ) ) and ) ( a neutrino ) ) or ) ( ( two jets ) ( with ( ( ( two leptons ) and ) ( two neutrinos ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (CD 4) (NNS Top)) (PP (IN at) (NP (NNP Hadron)))) (VP (VBZ Colliders) (NP (NP (NP (DT The) (NN decay)) (PP (IN of) (NP (NP (DT a) (JJ top) (NN quark) (NNS results)) (PP (IN in) (NP (CD six) (NNS jets)))))) (, ,) (CC or) (NP (NP (NP (CD four) (NNS jets)) (, ,) (NP (DT a) (NN lepton)) (CC and) (NP (DT a) (NN neutrino))) (CC or) (NP (NP (CD two) (NNS jets)) (PP (IN with) (NP (NP (CD two) (NNS leptons)) (CC and) (NP (CD two) (NNS neutrinos)))))))) (. .)))
4 Top at Hadron Colliders The decay of a top quark results in six jets, or four jets, a lepton and a neutrino or two jets with two leptons and two neutrinos.
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (CD six) (NNS types)) (PP (IN of) (NP (NNS leptons))))) (. .)))