in reality it 's one tough rock . 
(ROOT (S (PP (IN in) (NP (NN reality))) (NP (PRP it)) (VP (VBZ 's) (NP (CD one) (JJ tough) (NN rock))) (. .)))
(ROOT (S (PP (IN ) (NP (NN ))) (NP (PRP )) (VP (VBZ ) (NP (CD ) (JJ ) (NN ))) (. )))