( ( a -RRB- ) ( ( A ( theory ( , ( principle ( , ( ( law or ) concept ) ) ) ) ) ) ( ( are ( about ( the ( scientific ( level ofexplanation ) ) ) ) ) . ) ) )
(ROOT (S (LST (LS a) (-RRB- -RRB-)) (NP (DT A) (NN theory) (, ,) (NN principle) (, ,) (NN law) (CC or) (NN concept)) (VP (VBP are) (PP (IN about) (NP (DT the) (JJ scientific) (NN level) (NN ofexplanation)))) (. .)))
a) A theory, principle, law or concept are about the scientific level ofexplanation.
(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))))))))) (. .)))