( ( The world ) ( ( is ( made ( of ( ( ( six quarks ) and ) ( six leptons ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN world)) (VP (VBZ is) (VP (VBN made) (PP (IN of) (NP (NP (CD six) (NNS quarks)) (CC and) (NP (CD six) (NNS leptons)))))) (. .)))
The world is made of six quarks and six leptons .
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (CD six) (NNS types)) (PP (IN of) (NP (NNS leptons))))) (. .)))