Filter: Part of Speech Filter
The Brill Tags are translated into the corresponding LDOCE grammatical categories.
Any senses which do not correspond to the category returned are removed from consideration.
To guard against errors that the tagger may make which would result in the correct sense being removed from consideration, certain measures can be taken: 1) the filter can be turned off; 2) if none of the dictionary sense matches the category assigned, all senses are kept. In general, there is good evidence that this filtering approach works despite tagging errors.