<?xml version="1.0" encoding="utf-8"?>
<!-- Time Hour:Minute:Seconds:Milliseconds 00:00:00:000-->
<navigation>
	<conceptcheck starttime="00:03:57:000" stoptime="00:04:00:000">
		<question>How many sums of seven do we have?</question>
		<answer value='2'>2</answer>
		<answer value='3'>3</answer>
		<answer value='1'>1</answer>
		<correct>2</correct>
	</conceptcheck>
	<conceptcheck starttime="00:04:12:500" stoptime="00:04:17:000">
		<question>How many sums of nine do we have?</question>
		<answer value='7'>7</answer>
		<answer value='6'>6</answer>
		<answer value='4'>4</answer>
		<correct>4</correct>
	</conceptcheck>
	<conceptcheck starttime="00:04:28:000" stoptime="00:04:32:000">
		<question>How many sums of eleven do we have?</question>
		<answer value='4'>4</answer>
		<answer value='3'>3</answer>
		<answer value='2'>2</answer>
		<correct>2</correct>
	</conceptcheck>
</navigation>