parents love to have their kids 
(ROOT (S (NP (NNS parents)) (VP (VBP love) (S (VP (TO to) (VP (VB have) (NP (PRP$ their) (NNS kids))))))))
(ROOT (S (NP (NNS )) (VP (VBP ) (S (VP (TO ) (VP (VB ) (NP (PRP$ ) (NNS ))))))))