Short notice for reverting sjdrus to russjd files:
look into the runIt.sh

Observations while working with the transformation.

Ad: a_sjdrus-file

   <e id="куххькь_a">
      <lg>
         <l pos="a">куххькь</l>
         <l_alt orth="rk">куһкь</l_alt>
      </lg>
      <sources>
         <book name="l1"/>
         <book name="l2"/>
         <book name="l3"/>
      </sources>
      <mg>
         <semantics>
            <sem class="ABSTRACT"/>
         </semantics>
         <tg xml:lang="rus">
            <t stat="pref">длинный</t>
         </tg>
.......

vs.

   <e>
      <lg>
         <l pos="a">куххьк</l>
      </lg>
      <sources>
         <book name="Saamkilsyjjt"/>
      </sources>
      <mg>
         <semantics>
            <sem class="TIME_EXPRESSION"/>
            <sem class="HUMAN_A"/>
            <sem class="PLACE_NATURE"/>
         </semantics>
         <tg xml:lang="rus">
            <t stat="pref">длинный</t>
         </tg>

@cip's question: why does the first entry HAS an l_alt while the second not?

@Trondtr answers: There are 214 final ьCь and two final ьC. I comment out
                  the former and leave a question mark on the noun а̄ввьль