Splot the mistake

<greeting>Hello world!</greeting>
<greeting>Hello world!</Greeting>

<greeting><grunt>Ho</grunt> world!</greeting>
<grunt>Ho <greeting>world!</greeting></grunt>
<greeting><grunt>Ho world!</greeting></grunt>

<grunt type=loud>Ho</grunt>
<grunt type="loud"></grunt>

<grunt type= "loud">
<grunt type ="loud"/>