blue_pesudo_hair is a misspelling of blue_pseudo_hair. (e and s are switched) On its own this isn't very interesting, especially because there are no images with the misspelled tag. However, the misspelled blue_pesudo_hair IMPLIES pseudo_hair while the correctly spelled blue_pseudo_hair does not imply anything! This is clearly a mistake.
I suggest removing the implication "blue_pesudo_hair -> pseudo_hair" and instead adding "blue_pseudo_hair -> pseudo_hair". Again, there are no images with the misspelled blue_pesudo_hair, so removing the implication should not cause harm, and adding an alias is not necessary.