carry on their parents ' anguish 
(ROOT (S (VP (VB carry) (PRT (RP on)) (NP (NP (PRP$ their) (NNS parents) (POS ')) (NN anguish)))))
(ROOT (S (VP (VB ) (PRT (RP )) (NP (NP (PRP$ ) (NNS ) (POS )) (NN )))))