For instance, the tag sequence sing sing could correspond either to Nevertheless, due to the constraints involved in the tagging process (namely that a close tag cannot appear unless one is already within an NP and that one cannot have two close tags when the corresponding open tags appear at the same location 1 ), we hope that our system will be able to disambiguate sufficiently.
although our taggings are under-specified, we hope that the additional constraints that we subsequently associate with these tags will yield high quality bracketings.