Find one tagging error in each of the following sentences that are tagged with the Penn Treebank tagset:

I$/$PRP need$/$VBP a$/$DT flight$/$NN from$/$IN Atlanta$/$NN

Does$/$VBZ this$/$DT flight$/$NN serve$/$VB dinner$/$NNS

I$/$PRP have$/$VB a$/$DT friend$/$NN living$/$VBG in$/$IN Denver$/$NNP

Can$/$VBP you$/$PRP list$/$VB the$/$DT nonstop$/$JJ afternoon$/$NN flights$/$NNS