Prefixes starting with <ON >
<ON #>
.
<ON A>
.
<ON B>
.
<ON C>
.
<ON F>
.
<ON H>
.
<ON M>
.
<ON O>
.
<ON R>
.
<ON S>
.
<ON T>
.
<ON W>
.
<ON > (other)
.