a narrow transcription would be , which notes several phonetic features that may not be evident even to a native speaker. An example of a broad transcription is , which indicates only some of the features that are easier to hear. A yet broader transcription would be in which every symbol represents an unambiguous speech sound but without going into any unnecessary detail. None of those transcriptions makes any claims about the phonemic status of the sounds. Instead, they represent certain ways in which it is possible to produce the sounds that make up the word. There are also several possibilities in how to transcribe the word phonemically, but here, the differences are generally of not precision but analysis. For example, pretzel could be or . The latter transcription suggests that there are two vowels in the word even if they cannot both be heard, but the former suggests that there is only one. Strictly speaking, it is not possible to have a distinction between "broad" and "narrow" within phonemic transcription, since the symbols chosen represent only sounds that have been shown to be distinctive. However, the symbols themselves may be more or less explicit about their phonetic realization. A frequently cited example is the symbol chosen for the English consonant at the beginning of the words 'rue', 'rye', 'red': this is frequently transcribed as /r/, despite the symbol suggesting an association with the IPA symbol which is used for a tongue-tip trill. It is equally possible within a phonemic transcription to use the symbol , which in IPA usage refers to an alveolar approximant; this is the more common realization for English pronunciation in America and England. Phonemic symbols will frequently be chosen to avoid diacritics as much as possible, under a 'one sound one symbol' policy, or may even be restricted to the ASCII symbols of a typical keyboard, as in the SAMPA alphabet. For example, the English word church may be transcribed as , a close approximation of its actual pronunciation, or more abstractly as , which is easier to type. Phonemic symbols should always be backed up by an explanation of their use and meaning, especially when they are as divergent from actual pronunciation as . Occasionally a transcription will be enclosed in pipes ("| |"). This goes beyond phonology into morphological analysis. For example, the words pets and beds could be transcribed phonetically as and