## 16.2. Predefined Strings

The following strings are predefined; of these, only `R` and `S` are documented.

String | Effect in troff | Effect in nroff
--- | --- | ---
`\*(lq` | `‘‘` (‘‘) | `"`
`\*(rq` | `''` ('') | `"`
`\*(PN` | Current page number | Current page number
`\*(R` | `\(rg` (®) | `(Reg.)`
`\*(S` | Restore default point size | Restore default point size

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