Graffiti it is a rapidly developing art form whose value is highly contested and reviled by many authorities while also subject to protection, sometimes within the same jurisdiction. Both "graffiti" and its occasional singular form "graffito" are from the Italian word "graffiato" ("scratched"). "Graffiti" is applied in art history to works of art produced by scratching a design into a surface. A related term is "sgraffito", which involves scratching through one layer of pigment to reveal another beneath it. This technique was primarily used by potters who would glaze their wares and then scratch a design into it. In ancient times
Singular they the pronouns "everybody", "everyone", "nobody", and "no one" are singular in form and are used with a singular verb, these pronouns have an "implied plurality" that is somewhat similar to the implied plurality of collective or group nouns such as "crowd" or "team", and in some sentences where the antecedent is one of these "implied plural" pronouns, the word "they" cannot be replaced by generic "he", suggesting a "notional plural" rather than a "bound variable" interpretation. In contrast to sentences that involve multiple pairwise relationships and singular "they" such as There are examples where the antecedent pronoun (such as "everyone")