take the grandkids or the grandparents 
(ROOT (S (VP (VB take) (NP (NP (DT the) (NNS grandkids)) (CC or) (NP (DT the) (NNS grandparents))))))
(ROOT (S (VP (VB ) (NP (NP (DT ) (NNS )) (CC ) (NP (DT ) (NNS ))))))