Aliasing chain_link fence -> chainlink_fence .

Reason: Just in case. I always have a tendency to put a space splitting "chainlink."

You meant chain_link_fence -> chainlink_fence. You added an extra underscore at the end of them.
Also, I think the technically correct spelling is chain-link_fence (with a dash), according to most Google and dictionary results. Maybe it would be better to alias other spellings to that.

Aliased to chain-link_fence