Hey folks :)
Right now the property parser function on Wikipedia and other clients only works with the label of the property. People are asking us to make it also work with aliases. In order to do that labels and aliases need to be unique across properties. There are unfortunately a number of properties where the label and aliases are not unique. Those need to be fixed before we can enable the feature. Bene has created a page that lists all properties that need to have their aliases changed: https://tools.wmflabs.org/bene/alias-uniqueness/ If you could have a look at this and fix some that'd be much appreciated.
Cheers Lydia