<grammar xmlns="http://relaxng.org/ns/structure/1.0">
<start>
<element name="doc">
<zeroOrMore>
<choice>
<element name="p">
<ref name="inline"/>
</element>
<grammar>
<include href="table.rng">
<define name="cell.content">
<parentRef name="inline"/>
</define>
</include>
</grammar>
</choice>
</zeroOrMore>
</element>
</start>
<define name="inline">
<zeroOrMore>
<choice>
<text/>
<element name="em">
<ref name="inline"/>
</element>
</choice>
</zeroOrMore>
</define>
</grammar>