Currently repeating
hydrogen-sulfide
is not ideal because the ID/URL has that word duplicated:/pioyi/hydrogen-sulfide/production-of-hydrogen-sulfide
I understand that currently perhaps this is the only choice because you want the title to show as "Prodcution of Hydrogen sulfide".
But in short/mid term I want to make scope ancestors show up on the title such sa:
Hydrogen sulfide / Prodcution
which with the current source will lead to duplication on the title as well:
Hydrogen sulfide / Hydogen solfide prodcution
So I'd either do:
= Hydrogen sulfide
{scope}
== Prodcution
or:
= Hydrogen sulfide
== Hydrogen sulfide prodcution
but not both scope and repeating as current:
= Hydrogen sulfide
{scope}
== Hydrogen sulfid prodcution