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Are there any good algorithms/open source tools for negating a sentence? For example, "I do not want to go there" will be negated to "I want to go there". "I went to Englanf last summer" will become "I did not go to England last summer". "I will never talk to him again" will become "I will [always?] talk to him", etc. I know the problem itself is not very well defined in that what it means to be a "negated meaning" itself is not well defined, but is there any tools that does a decent jobs in general? |
