ris
<s1 fml.segment.id="eve" fml.segment.pos="0">
    e
</s1>
to
<s2 fml.segment.id="eve" fml.segment.pos="1">
    v
</s2>
ot
<s3 fml.segment.id="eve" fml.segment.pos="2">
    e
</s3>
sir