Mark up word-based sets as MathML

[abcdsen-create]

Priority: Medium

Description

Add
guidance for sets whose members are words, such as city names. These are still
mathematical sets and must not be written as ordinary text with literal braces
and commas. Each word-based member should use <mtext> within MathML.

Recommended markup

<math
xmlns="http://www.w3.org/1998/Math/MathML">

<mi>C</mi><mo>=</mo><mo>{</mo>

<mtext>Helsinki</mtext><mo>,</mo>

  <mtext>Copenhagen</mtext><mo>,</mo>

<mtext>Oslo</mtext><mo>,</mo>

<mtext>Reykjavik</mtext><mo>,</mo>

<mtext>Stockholm</mtext>

<mo>}</mo>

</math>

Acceptance criteria

• Guidance states that word-based sets still require MathML.
• Each textual member is represented with <mtext>.
• The set is confirmed to receive set-specific speech rather than generic punctuation handling.