My mom knows.
( ( My mom ) ( knows . ) )
(ROOT (S (NP (PRP$ My) (NN mom)) (VP (VBZ knows)) (. .)))
My dad is unaware of this.
( ( My dad ) ( ( is ( unaware ( of this ) ) ) . ) )
(ROOT (S (NP (PRP$ My) (NN dad)) (VP (VBZ is) (ADJP (JJ unaware) (PP (IN of) (NP (DT this))))) (. .)))