Splitting the "gas" tag

So, we have a tag for “gas.” Problem is, that applies to at least three different subjects:
 

I would suggest partitioning them among the more specific tags:  
gasoline  
fart  
burp  
aphrodisiac  
and gas could remain a tag for more general gases like this:>>1042721 or this:>>849945

Makes sense, though I’m not sure about just shunting aphrodesiac gas into “aphrodisiac” alone. Yet, making a new tag for aphrodesiac gas also doesn’t make a lot of sense.
 
Also, I’m a little leery of just unilaterally changing a bunch of tags.

Gas could be used for anything that makes visible clouds (or just a clear reference to a type of gas), like in the first two examples, then you have the more specific tags to differentiate them, like Dragonpone said.
 
As for “gas” as in “gasoline”, I say just retag as “gasoline”.

@ArmadilloEater
 
That makes sense. I’ll think about it a bit more and see the best way to differentiate some of those. Thanks!

Bumping for continued discussion and/or forum organizational purposes.