trying to figure out the rules of the country bear universe -- when are bears bears and when are they like humans , only hairier -- would tax einstein 's brain . 
(ROOT (S (S (VP (VBG trying) (S (VP (TO to) (VP (VB figure) (PRT (RP out)) (NP (NP (NP (DT the) (NNS rules)) (PP (IN of) (NP (DT the) (NML (NN country) (NN bear)) (NN universe)))) (, --) (SBAR (SBARQ (WHADVP (WRB when)) (SQ (VBP are) (NP (VBZ bears)) (NP (NNS bears)))) (CC and) (SBARQ (WHADVP (WRB when)) (SQ (VBP are) (NP (PRP they)) (PP (IN like) (NP (NNS humans))) (, ,) (ADJP (RB only) (NN hairier))))) (, --))))))) (VP (MD would) (VP (VB tax) (NP (NP (NNP einstein) (POS 's)) (NN brain)))) (. .)))
(ROOT (S (S (VP (VBG ) (S (VP (TO ) (VP (VB ) (PRT (RP )) (NP (NP (NP (DT ) (NNS )) (PP (IN ) (NP (DT ) (NML (NN ) (NN )) (NN )))) (, ) (SBAR (SBARQ (WHADVP (WRB )) (SQ (VBP ) (NP (VBZ )) (NP (NNS )))) (CC ) (SBARQ (WHADVP (WRB )) (SQ (VBP ) (NP (PRP )) (PP (IN ) (NP (NNS ))) (, ) (ADJP (RB ) (NN ))))) (, ))))))) (VP (MD ) (VP (VB ) (NP (NP (NNP ) (POS )) (NN )))) (. )))