Many instances of sex/gender indices incorporate multiple levels of indexicality (also referred to as "indexical order"). In fact, some, such as the prefix-affixation of o- in Japanese, demonstrate complex higher-order indexical forms. In this example, the first order indexes politeness and the second order indexes affiliation with a certain gender class. It is argued that there is an even higher level of indexical order evidenced by the fact that many jobs use the "o-" prefix to attract female applicants. This notion of higher-order indexicality is similar to Silverstein's discussion of "wine talk" (see below) in that it indexes "an identity-by-visible-consumption "employment"" that is an inherent of a certain social register (i.e. social gender indexicality).