Serial comma toast. Adding a serial comma removes this ambiguity. Writers who normally avoid the serial comma often use one in these circumstances, although sometimes re-ordering the elements of such a list can help as well. In some circumstances using the serial comma can create ambiguity. If the book dedication above is changed to the serial comma after "Ayn Rand" creates ambiguity about the writer's mother because it uses punctuation identical to that used for an appositive phrase, leaving it unclear whether this is a list of three entities (1, my mother; 2, Ayn Rand; and 3, God) or of only two
Punctuation Rs. 20/- or Rs. 20/= implies 20 rupees whole. Thai did not use punctuation until the adoption of punctuation from the West in the 20th century. Blank spaces are more frequent than full stops or commas. "Further information: Armenian punctuation, Chinese punctuation, Hebrew punctuation, Japanese punctuation and Korean punctuation." In 1966, the French author Hervé Bazin proposed a series of six innovative punctuation marks in his book "Plumons l'Oiseau" ("Let's pluck the bird", 1966). These were: An international patent application was filed, and published in 1992 under Work Order (WO) number WO9219458, for two new punctuation marks: the "question comma"