A textual unit or block; a textual paragraph
This element does not have to be a well-formed paragraph as defined in high school English class, i.e., “a block of text representing a single idea, typographically differentiated from its neighbors”. Rather, the element <p> is a block (as opposed to inline) structural unit which may be only a few words in length.
<!ELEMENT p (#PCDATA %p-elements;)* >
(#PCDATA | email | ext-link | multi-link | uri | inline-supplementary-material | related-article | related-object | address | alternatives | array | boxed-text | chem-struct-wrap | fig | fig-group | graphic | map-group | media | preformat | supplementary-material | table-wrap | table-wrap-group | disp-formula | disp-formula-group | element-citation | mixed-citation | nlm-citation | bold | italic | monospace | overline | overline-start | overline-end | roman | sans-serif | sc | strike | underline | underline-start | underline-end | award-id | funding-source | open-access | chem-struct | inline-formula | inline-graphic | private-char | def-list | list | tex-math | mml:math | abbrev | milestone-end | milestone-start | named-content | styled-content | ack | disp-quote | speech | statement | verse-group | fn | target | xref | sub | sup)*
Any combination of:
<abstract>, <ack>, <annotation>, <app>, <app-group>, <author-comment>, <author-notes>, <bio>, <body>, <boxed-text>, <caption>, <def>, <disp-quote>, <fig>, <fn>, <glossary>, <list-item>, <note>, <notes>, <open-access>, <ref-list>, <sec>, <speech>, <statement>, <supplementary-material>, <table-wrap-foot>, <trans-abstract>
<book>
<book-meta>...</book-meta>
<book-front>
<title>About this book</title>
<sec sec-type="miscinfo">
<title>The NCBI Handbook</title>
<p>Bioinformatics consists of a computational approach
to biomedical information management and analysis. It is
being used increasingly as a component of research within
both academic and industrial settings and is becoming
integrated into both undergraduate and postgraduate
curricula. The new generation of biology graduates is
emerging with experience in using bioinformatics resources
and, in some cases, programming skills.</p>
...
</sec>
</book-front>
...
</book>
para3.ent