<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE toys [
<!ENTITY toy3 "<name>Transformer X</name><price>519</price>">
]>

<toys>

    <toy id="1">	
        <name>The Martian</name>
        <price>98470</price>
    </toy>
    <toy id="2">
        <name>The Doll</name>
        <price>345</price>
    </toy>         
    <toy id="3">
        &toy3;
    </toy>    
    <toy id="4">
        <name>The Spaceship</name>
        <price>725</price>
    </toy>         
     
</toys>