( ( In Valerian ) ( we ( ( read ( that ( ( many ( of ( ( the greys ) ( ( ( ( involved ( with humans ) ) , ) ( like ( their ( lizzie masters ) ) ) ) , ) ) ) ) ( ( exist ( in ( dimensions ( beyond ( the ( three dimensions ) ) ) ) ) ) ( that ( humans know ) ) ) ) ) ) . ) ) )
(ROOT (S (PP (IN In) (NP (NNP Valerian))) (NP (PRP we)) (VP (VBP read) (SBAR (IN that) (S (NP (NP (JJ many)) (PP (IN of) (NP (NP (DT the) (NNS greys)) (VP (VBN involved) (PP (IN with) (NP (NNS humans))) (, ,) (PP (IN like) (NP (PRP$ their) (JJ lizzie) (NNS masters))) (, ,))))) (VP (VBP exist) (PP (IN in) (NP (NP (NNS dimensions)) (PP (IN beyond) (NP (DT the) (CD three) (NNS dimensions))))) (SBAR (IN that) (S (NP (NNS humans)) (VP (VBP know)))))))) (. .)))
In Valerian we read that many of the greys involved with humans, like their lizzie masters, exist in dimensions beyond the three dimensions that humans know.
(ROOT (S (NP (NNS Humans)) (VP (MD can) (VP (VB see) (PP (IN in) (NP (CD three) (NNS dimensions))))) (. .)))