In the above cases, the is not deleted. The words are all single morphemes, unlike "singer" and "singing" which are composed of two morphemes, "sing" plus "-er" or "-ing". In theory, there is a minimal pair consisting of "hangar" ('shed for aircraft'), which, containing no internal morpheme boundary, is pronounced and "hanger" ('object for hanging clothes'), which comprises two morphemes and is pronounced . Not all speakers use these pronunciations consistently, however. Rule 2 can be amended to include a symbol # for a morpheme boundary (including word boundary):