<FlowDocument >
<Paragraph>
<Bold>Bold text</Bold>
</Paragraph>
<Paragraph>
<Underline>Underline text</Underline>
</Paragraph>
<Paragraph>
<Bold>
<Underline>Bold and underline text</Underline>
</Bold>
</Paragraph>
<Paragraph>
<Italic>Italic text</Italic>
</Paragraph>
</FlowDocument>