So, I have my sister's kid here and I'm going to kill him underneath this vehicle shortly.
( So ( , ( ( ( ( I ( have ( ( ( my ( sister 's ) ) kid ) here ) ) ) and ) ( I ( 'm ( going ( to ( ( ( kill him ) ( underneath ( this vehicle ) ) ) shortly ) ) ) ) ) ) . ) ) )
(ROOT (S (ADVP (RB So)) (, ,) (S (NP (PRP I)) (VP (VBP have) (NP (NP (NP (PRP$ my) (NN sister) (POS 's)) (NN kid)) (ADVP (RB here))))) (CC and) (S (NP (PRP I)) (VP (VBP 'm) (VP (VBG going) (S (VP (TO to) (VP (VB kill) (NP (PRP him)) (PP (IN underneath) (NP (DT this) (NN vehicle))) (ADVP (RB shortly)))))))) (. .)))
I am going to kill my sister's kid here with this vehicle. 
( I ( ( am ( going ( to ( ( kill ( ( my ( sister 's ) ) kid ) ) ( here ( with ( this vehicle ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBP am) (VP (VBG going) (S (VP (TO to) (VP (VB kill) (NP (NP (PRP$ my) (NN sister) (POS 's)) (NN kid)) (PP (ADVP (RB here)) (IN with) (NP (DT this) (NN vehicle)))))))) (. .)))