( ( Within metaphysics ) ( , ( there ( ( are ( ( ( two ( competing theories ) ) ( of Laws ) ) ( of Nature ) ) ) . ) ) ) )
(ROOT (S (PP (IN Within) (NP (NNS metaphysics))) (, ,) (NP (EX there)) (VP (VBP are) (NP (NP (CD two) (VBG competing) (NNS theories)) (PP (IN of) (NP (NNP Laws))) (PP (IN of) (NP (NNP Nature))))) (. .)))
Within metaphysics, there are two competing theories of Laws of Nature.
(ROOT (S (NP (NP (DT The) (NN law)) (PP (IN of) (NP (NN parsimony)))) (VP (VBZ is) (NP (NP (DT the) (JJ scientific) (NN concept)) (VP (VBG stating) (SBAR (IN that) (S (SBAR (WHADVP (WRB when)) (S (VP (VBG looking) (PP (IN at) (NP (CD two))) (NP (VBG competing) (NNS theories))))) (, ,) (NP (NP (DT the) (NN one)) (PP (IN with) (NP (JJR fewer) (NNS assumptions)))) (VP (MD should) (VP (VB be) (VP (VBN chosen))))))))) (. .)))