One line of a poem or verse
<!ELEMENT verse-line (#PCDATA %verse-line-elements;)* >
(#PCDATA | email | ext-link | uri | inline-supplementary-material | related-article | related-object | hr | bold | italic | monospace | overline | overline-start | overline-end | roman | sans-serif | sc | strike | underline | underline-start | underline-end | alternatives | inline-graphic | private-char | chem-struct | inline-formula | tex-math | mml:math | abbrev | milestone-end | milestone-start | named-content | styled-content | fn | target | xref | sub | sup | x)*
Any combination of:
... <sec> <title>Buy or Lease?<break/> Two Models for Scholarly Information<break/> at the End (or the Beginning) of an Era</title> <verse-group> <verse-line>Some say the world will end in fire,</verse-line> <verse-line>Some say in ice.</verse-line> <verse-line>From what I’ve tasted of desire</verse-line> <verse-line>I hold with those who favor fire.</verse-line> <verse-line>But if it had to perish twice,</verse-line> <verse-line>I think I know enough of hate</verse-line> <verse-line>To say that for destruction ice</verse-line> <verse-line>Is also great</verse-line> <verse-line>And would suffice.</verse-line> <attrib>—Robert Frost “Fire and Ice”</attrib> </verse-group> <p>Within living memory, our use of print (static) information has been governed by copyright law and the practices that have evolved around it. Enter electronic information, where publishers deliver it with licenses and new rules, a very different framework from copyright....</p> </sec> ...