the four feathers is definitely horse feathers , but if you go in knowing that , you might have fun in this cinematic sandbox . 
(ROOT (S (S (NP (DT the) (CD four) (NNS feathers)) (VP (VBZ is) (ADVP (RB definitely)) (NP (NN horse) (NNS feathers)))) (, ,) (CC but) (S (SBAR (IN if) (S (NP (PRP you)) (VP (VBP go) (PRT (IN in)) (S (VP (VBG knowing) (NP (DT that))))))) (, ,) (NP (PRP you)) (VP (MD might) (VP (VB have) (NP (NN fun)) (PP (IN in) (NP (DT this) (JJ cinematic) (NN sandbox)))))) (. .)))
(ROOT (S (S (NP (DT ) (CD ) (NNS )) (VP (VBZ ) (ADVP (RB )) (NP (NN ) (NNS )))) (, ) (CC ) (S (SBAR (IN ) (S (NP (PRP )) (VP (VBP ) (PRT (IN )) (S (VP (VBG ) (NP (DT ))))))) (, ) (NP (PRP )) (VP (MD ) (VP (VB ) (NP (NN )) (PP (IN ) (NP (DT ) (JJ ) (NN )))))) (. )))