1.1 ! misho 1: <!DOCTYPE test [ ! 2: <!ELEMENT test EMPTY> ! 3: <!ATTLIST test attr1 NMTOKENS #IMPLIED> ! 4: ]> ! 5: <!-- Should be invalid due to http://www.w3.org/XML/xml-V10-2e-errata#E20 --> ! 6: <test attr1=" a	b "/>