Index: incubator/apertium-fao-nor/apertium-fao-nor.fao-nob.t1x
===================================================================
--- incubator/apertium-fao-nor/apertium-fao-nor.fao-nob.t1x	(revision 77844)
+++ incubator/apertium-fao-nor/apertium-fao-nor.fao-nob.t1x	(revision 77845)
@@ -411,6 +411,14 @@
             <concat><lit v="hans"/><lit-tag v="det.pos.nt.sg"/></concat></let>
   		  </when>
 		</choose>
+        <choose>
+          <when>
+            <test><and><equal><clip pos="1" side="sl" part="tags"/><lit-tag v="prn.pers.pl.gen"/></equal>
+              <equal><clip pos="1" side="sl" part="lem"/><lit v="tað"/></equal></and></test>
+            <let><clip pos="1" side="tl" part="whole"/>
+            <concat><lit v="deres¹"/><lit-tag v="det.pos.nt.sg"/></concat></let>
+          </when>
+        </choose>
 	    <out>
 	      <chunk name="a" case="caseFirstWord">
             <tags>