those little kids don't understand it
( ( those ( little kids ) ) ( ( do n't ) ( understand it ) ) )
(ROOT (S (NP (DT those) (JJ little) (NNS kids)) (VP (VBP do) (RB n't) (VP (VB understand) (NP (PRP it))))))
Those young children can't comprehend it. 
( ( Those ( young children ) ) ( ( ( ca n't ) ( comprehend it ) ) . ) )
(ROOT (S (NP (DT Those) (JJ young) (NNS children)) (VP (MD ca) (RB n't) (VP (VB comprehend) (NP (PRP it)))) (. .)))