<!doctype doc [
<!element doc - o any>
<!entity % data
"                                                                            
                xyz                                                            
                                                                            ">
<!entity foo sdata "foo">
<!entity sent sdata "%data;">
<!entity gent "%data;">

<!attlist doc att names #implied>
]>
<doc
att="                                                                       
                                                                            
                                                                            
                           foo&sent;&sent;&gent;&sent;bar &foo;bar &foo; bar">
