    ‘Sentence 1: Of cour:  tampers with the  unil    if a researcher  ence, making a  eral, unsupported claim or  assumption that a word: means  something that it does, not, then that  does not constitute semantic it is what  is known as dirty work at the  crossroads, and M and Sare indulging in  a bit of mischief by suggesting that  semantic change either has taken place  or is taking place because they, have  some evidence that a certain change in  usage had crept                      