1<element name="addressBook" xmlns="http://relaxng.org/ns/structure/1.0"> 2 <zeroOrMore> 3 <element name="card"> 4 <interleave> 5 <zeroOrMore> 6 <element name="name"> 7 <text/> 8 </element> 9 <element name="email"> 10 <text/> 11 </element> 12 </zeroOrMore> 13 <zeroOrMore> 14 <element name="company"> 15 <text/> 16 </element> 17 <element name="email"> 18 <text/> 19 </element> 20 </zeroOrMore> 21 </interleave> 22 </element> 23 </zeroOrMore> 24</element> 25