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<html>
<body>
<a href="/home">BBB</a>
<b dir="ltr" id="aaaa" class="a b c">bbb</b>
<a dir="rtl" id="blabla" href="/"><b id="b1">AAA</b><u dir="auto" id="ble" title="test">UUU</u>AAAAAAA
</a>
<a id="bb" dir="blalalala" href="/">BB</a>
<script>
function aa()
{
var x = document.getElementById('blabla').firstChild.id;
console.assert(x === 'b1', 'b1');
}
console.error('element.firstChild.html');
aa();
console.exit();
</script>
<button onclick="return aa()">Click me!</button>
</body>
</html>
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