'rainbow's house' should be aliased to 'rainbow dash's house'

rainbow’s house <=> rainbow dash’s house <=> cloudominium
 
And on that note:
 
houses => house

Why even have the first one? We don’t tag nicknames , not so far at least, and especially not use them in combined tag names. I say just destroy it.
 
…It’s kind of funny now that I think about it because you could say “twilight’s” and it wouldn’t sound like a nickname. But “rainbow”, definitely a nickname. Just one of those things I guess.

@Solitude
 
Also, there is cloudominium. so there are three tags for Rainbow Dash’s house. _{i personally prefer cloudominium.}

@Mildgyth  
I ain’t ever heard of that one. The heck did that term come from?
 
But yeah, I’m fine either way. I leave it to the mod’s discretion.