( ( that is ) ( , ( ( awareness ( is ( ( an attribute ) ( primarily ( of ( ( space , ) awareness-emptiness ) ) ) ) ) ) . ) ) )
(ROOT (S (INTJ (DT that) (VBZ is)) (, ,) (S (NP (NN awareness)) (VP (VBZ is) (NP (NP (DT an) (NN attribute)) (PP (ADVP (RB primarily)) (IN of) (NP (NP (NN space)) (, ,) (NP (NNS awareness-emptiness))))))) (. .)))
that is, awareness is an attribute primarily of space, awareness-emptiness.
(ROOT (S (NP (DT The) (NN nucleus)) (VP (VBZ is) (VP (VBN comprised) (ADVP (RB primarily)) (PP (IN of) (NP (JJ empty) (NN space))))) (. .)))