Any non-section entity in an activity can contain rich-text and custom fields for files, links, text, people and dates.
Many other computer programs are also capable of processing or creating plain text, such as countless commands in DOS, Windows, Mac OS, and Unix and its kin; as well as web browsers (a few browsers such as Lynx and the Line Mode Browser produce only plain text for display).
Salisbury Plain | In Plain Sight | Plain old telephone service | Text messaging | Plain White T's | The Plain Dealer | Nullarbor Plain | Masoretic Text | text | Upper Rhine Plain | text editor | Text corpus | Plain | Stony Plain, Alberta | Mitchell's Plain | Just Plain Bill | Jamaica Plain | coastal plain | alt+Alt text | Third Text | The Purple Plain | The Plain | text corpus | Swan Coastal Plain | St Martin's Plain | Plain Old XML | Plain Antvireo | Pali Text Society | Coastal Plain League | CD-Text |
It is essentially an adaptation of the American system to the limitations of plain text encodings such as ISO-8859-1 and Windows-1252.
The abstracts are either uploaded as documents (typically Microsoft Word, PDF or LaTeX) or, where graphics and tables are not required, they may simply be entered into the form as plain text.
In that dissent, joined by Justices Ginsburg and Souter, Stevens writes that "The plain text of the PLRA simply requires that such administrative remedies as are available be exhausted before the prisoner can take the serious step of filing a federal lawsuit against the officials who hold him in custody." He interprets this to mean any exhaustion, not just "proper exhaustion," and says that the Court has read its own interpretation into the statute.