1<?xml encoding='US-ASCII'?> 2 3<!ELEMENT sxe (elem1+, elem11, elem22*)> 4<!ATTLIST sxe id CDATA #implied> 5 6<!ELEMENT elem1 elem2*> 7<!ATTLIST elem1 attr1 CDATA #required 8 attr2 CDATA "default> 9 10<!ELEMENT elem2 elem3*> 11<!ATTLIST elem2 att25 CDATA #implied 12 att42 CDATA #implied> 13 14<!ELEMENT elem3 elem4*> 15<!ATTLIST elem3> 16 17<!ELEMENT elem4 EMPTY> 18<!ATTLIST elem4> 19 20<!ELEMENT elem11 elem111*> 21<!ATTLIST elem11> 22 23<!ELEMNET elem111 elem1111*> 24<!ATTLIST elem111> 25 26<!ELEMENT elem1111 EMPTY> 27<!ATTLIST elem1111> 28 29<!ELEMENT elem22 elem222*> 30<!ATTLIST elem22 attr22 CDATA #implied> 31 32<!ELEMENT elem222 EMPTY> 33<!ATTLIST elem222> 34 35