Question

<?xml version="1.0" encoding="UTF-8" standalone="no" ?> (please fix xml code!!)
<!--
New Perspectives on XML
Tutorial 2
Case Problem 2

MDPBA Competition Roster
Author: Chris Dawkins
Date: 7/26/19

Filename: mdpba.xml
-->
<!DOCTYPE bands
[
   <!ELEMENT bands (band+)>
   <!ELEMENT band (name, city, logo?, competition)

   <!ELEMENT name (#PCDATA)>
   <!ELEMENT city (#PCDATA)>

   <!ELEMENT logo EMPTY>

   <!ELEMENT competition (event, event)

]

<bands name="Midwest Developmental Pipe Band">
<band cid="c0001">
<name grade="juvenile">School of Celtic Bagpipes &amp; Drumming</name>
<city>Delafield</city>
<logo source="celtic" />
<competition>
<event type="MSR">
<tune>Charlies Welcome</tune>
<tune>Mrs MacPherson of Inveran</tune>
<tune>Brown Haired Maiden</tune>
</event>
<event type="Medley">
<tune>Rowd's Hornpipe</tune>
</event>
</competition>
</band>
<band cid="c0002">
<name grade="juvenile">Badger Pipes and Drums</name>
<city>Madison</city>
<logo source="badger" />
<competition>
<event type="MSR">
<tune>Lord Alexander Kennedy</tune>
<tune>Bob of Fettercairn</tune>
<tune>Brown Haired Maiden</tune>
</event>
<event type="Medley">
<tune>Out of the Air</tune>
</event>
</competition>
</band>
<band cid="c0003">
<name grade="novice">Pardeeville School of Piping and Drumming</name>
<city>Pardeeville</city>
<competition>
<event type="MSR">
<tune>Lord Alexander Kennedy</tune>
<tune>Bob of Fettercairn</tune>
<tune>The Little Cascade</tune>
</event>
<event type="Medley">
<tune>The Radar Racketeer</tune>
</event>
</competition>
</band>
<band cid="c0004">
<name grade="3">Zoar Scottish Pipe Band</name>
<city>Zoar</city>
<competition>
<event type="MSR">
<tune>Charlies Welcome</tune>
<tune>Mrs MacPherson of Inveran</tune>
<tune>Major Manson</tune>
</event>
<event type="Medley">
<tune>Miss Lily</tune>
</event>
</competition>
</band>
<band cid="c0005">
<name grade="juvenile">Stockholm Pipe Band</name>
<city>Stockholm</city>
<competition>
<event type="MSR">
<tune>Pretty Marion</tune>
<tune>The Sheepwife</tune>
<tune>Brown Haired Maiden</tune>
</event>
<event type="Medley">
<tune>Farewell to Erin</tune>
</event>
</competition>
</band>
</bands>

Answer 1

Fixed xml code is

<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<!--
New Perspectives on XML
Tutorial 2
Case Problem 2

MDPBA Competition Roster
Author: Chris Dawkins
Date: 7/26/19

Filename: mdpba.xml
-->
<!DOCTYPE bands
[
<!ELEMENT bands (band+)>
<!ELEMENT band (name, city, logo?, competition)>

<!ELEMENT name (#PCDATA)>
<!ELEMENT city (#PCDATA)>

<!ELEMENT logo EMPTY>

<!ELEMENT competition (event, event)>

]>

<bands name="Midwest Developmental Pipe Band" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<band cid="c0001">
<name grade="juvenile">School of Celtic Bagpipes &amp; Drumming</name>
<city>Delafield</city>
<logo source="celtic" />
<competition>
<event type="MSR">
<tune>Charlies Welcome</tune>
<tune>Mrs MacPherson of Inveran</tune>
<tune>Brown Haired Maiden</tune>
</event>
<event type="Medley">
<tune>Rowd's Hornpipe</tune>
</event>
</competition>
</band>
<band cid="c0002">
<name grade="juvenile">Badger Pipes and Drums</name>
<city>Madison</city>
<logo source="badger" />
<competition>
<event type="MSR">
<tune>Lord Alexander Kennedy</tune>
<tune>Bob of Fettercairn</tune>
<tune>Brown Haired Maiden</tune>
</event>
<event type="Medley">
<tune>Out of the Air</tune>
</event>
</competition>
</band>
<band cid="c0003">
<name grade="novice">Pardeeville School of Piping and Drumming</name>
<city>Pardeeville</city>
<competition>
<event type="MSR">
<tune>Lord Alexander Kennedy</tune>
<tune>Bob of Fettercairn</tune>
<tune>The Little Cascade</tune>
</event>
<event type="Medley">
<tune>The Radar Racketeer</tune>
</event>
</competition>
</band>
<band cid="c0004">
<name grade="3">Zoar Scottish Pipe Band</name>
<city>Zoar</city>
<competition>
<event type="MSR">
<tune>Charlies Welcome</tune>
<tune>Mrs MacPherson of Inveran</tune>
<tune>Major Manson</tune>
</event>
<event type="Medley">
<tune>Miss Lily</tune>
</event>
</competition>
</band>
<band cid="c0005">
<name grade="juvenile">Stockholm Pipe Band</name>
<city>Stockholm</city>
<competition>
<event type="MSR">
<tune>Pretty Marion</tune>
<tune>The Sheepwife</tune>
<tune>Brown Haired Maiden</tune>
</event>
<event type="Medley">
<tune>Farewell to Erin</tune>
</event>
</competition>
</band>
</bands>

If you left with any doubts, feel free to ask