Additionally, some differences in pronunciation may relate to socioeconomic background and level of education. For example, a word like "note" is pronounced with a diphthong, in standard English. In SLE, it is pronounced with the monophthong; and is accepted as normal in Sri Lanka. However, pronouncing a word like "hall" () as * is not accepted. The non-standard variety "Not Pot English" is formed based on this variant pronunciations of /o/ and /ɔ/ sounds by the Sri Lankan speakers. The confusion between full and half /o/ sounds is noted as a class marker;the label "Not Pot" itself reflects this mispronunciation. Mostly confused words by Sri Lankan speakers include; hall and hole, ball and bowl,and phone and call. Examples of some other words pronounced with a monophthong include, take and made/ cake and rake/ go and no.