Question: Now compare your tags from Exercise with one or two friend's answers. On which words did you disagree the most? Why?
Exercise: Find one tagging error in each of the following sentences that are tagged with the Penn Treebank tagset:
a. I/PRP need/VBP a/DT flight/NN from/IN Atlanta/NN
b. Does/VBZ this/DT flight/NN serve/VB dinner/NNS
c. I/PRP have/VB a/DT friend/NN living/VBG in/IN Denver/NNP
d. What/WDT flights/NNS do/VBP you/PRP have/VB from/IN Milwaukee/NNP to/IN Tampa/NNP
e. Can/VBP you/PRP list/VB the/DT nonstop/JJ afternoon/NN flights/NNS