When a variant vertical or diagonal line segment is used, describe the line it represents on the special symbols page or in a transcriber's note.

When lines and other elements of a diagram, such as an arrow, are touching or continuous, position the corresponding braille characters adjacent to one another, horizontally, vertically or diagonally.

Even when the left end of a horizontal line forms a corner or crossing with a vertical or diagonal line, open the horizontal line with the horizontal line mode indicator.

Use a space before and after each vertical line segment, first variant vertical line segment, second variant vertical line segment or combination of such segments. When a vertical line or one of the variant vertical lines crosses a diagonal line or is too close to a diagonal line, use either of the diagonal line segments or variant diagonal line segments.

In UEB the 64 braille characters including the space are designated as being either a prefix or a root. There are 8 prefixes: Dots 3456 plus the braille characters formed from the dots in the right column of the cell, that is the characters from Line 7 of the table in section 1.1.2 above. The other 56 braille characters are roots.

Use a sequence of guide dots to enable the reader to track across a gap in the braille, as in a table of contents or columned material. Use no less than two guide dots and leave at least one blank cell before and after the sequence.

Follow print for the foot sign and the caesura to mark the pauses in speech, as in scanning poetry.

When the line by line format of print (as in a poem) is changed to a linear format in braille, use the line indicator to mark the breaks between lines. The line indicator is unspaced from the preceding line and is followed by space before the following line.

Follow print when capitals, letter modifiers, change of typeface and/or symbols written on the line above are used to indicate stress either in the syllables of a word or in the words in a phrase, sentence or poem.

When print uses marks before or after a syllable to indicate it is stressed, use the primary and secondary stress signs and follow print placement. Describe what print sign is used on the symbols page or in a transcriber's note. 

Refer to: Section 3.11, General Symbols and Indicators, for the prime sign used for feet and minutes; and to Guidelines for Technical Material, Part 11 for the prime sign used in technical material.