Comment 36 for bug 114441

Maybe simple ruby as below is enough.

<ruby>
     <rb>WWW</rb>
     <rp>(</rp><rt>World Wide Web</rt><rp>)</rp>
</ruby>

Becaouse <rbc> and <rtc> gives no additional feature to represent ruby.
 For example above, I would like to write as below.

<ruby>
    <rb>10
    <rt>Month
</ruby>
<ruby>
    <rb>31
    <rt>Day
</ruby>
<ruby>
    <rb>2002
    <rt>Year
</ruby>