The rules are tested against a set of known texts and each rule is given a fitness score.

The oldest known German texts date back to the 8th century.

They are 1,000 years older than any other known biblical text.

This is the first known text to instruct teachers on teaching sign language.

They are possibly the oldest known religious texts in the world.

Other than this, there are no known surviving texts attributed to Apollos.

Which leaves 75 percent of the known texts of humans in the dark.

It proved to contain supplements to the known text of the Satyricon.

Written in the 2nd century, the novel has been referred to as "the first known text that could be called science fiction".

This is an invented stage direction, not found in any known text of the play.