<Integrated_data>
        <lethal_genes db='mips'>
                <gene>
                        <name>one</name>
                        <orf>one mips orf</orf>
                </gene>
                <gene>
                        <name>two</name>
                        <orf>two mips orf</orf>
                </gene>
                <gene>
                        <name>three</name>
                        <orf>three mips orf</orf>
                </gene>
        </lethal_genes>
        <lethal_genes db='ypd'>
                <gene>
                        <name>one</name>
                        <orf>one ypd orf</orf>
                </gene>
                <gene>
                        <name>two</name>
                        <orf>two ypd orf</orf>
                </gene>
                <gene>
                        <name>four</name>
                        <orf>four ypd orf</orf>
                </gene>
        </lethal_genes>
</Integrated_data>