Comma the purpose of the comma. There are also a number of comma-like diacritics with "COMMA" in their Unicode names. These do not serve a punctuation function. A comma-like low quotation mark is also available (shown below; raised single quotation marks are not shown). Various other Unicode characters combine commas or comma-like figures with other characters, and are not shown here. In the 3rd century BC, Aristophanes of Byzantium invented a system of single dots ("distinctiones") that separated verses (colometry) and indicated the amount of breath needed to complete each fragment of the text when reading aloud. The different lengths were
Rose is a rose is a rose is a rose Rose is a rose is a rose is a rose The sentence "Rose is a rose is a rose is a rose." was written by Gertrude Stein as part of the 1913 poem "Sacred Emily", which appeared in the 1922 book "Geography and Plays". In that poem, the first "Rose" is the name of a person. Stein later used variations on the sentence in other writings, and "A rose is a rose is a rose" is among her most famous quotations, often interpreted as meaning "things are what they are", a statement of the law of identity, "A is A".