In 2138 (32138) Page 8190 l. 8 (Rev 21:3), οθς is transcribed as one word:

<w>
ο
<abbr type="nomSac">
<hi rend="overline">θς</hi>
</abbr>
</w>
 

But, of course, these should be two seperate words:

<w>
ο
</w>
<w>
<abbr type="nomSac">
<hi rend="overline">θς</hi>
</abbr>
</w>