Announce is a synonym of Publish. Publish is a synonym of Declare. Declare is related to Like. Like is related to Allow. 
Disorder is a type of Change. Disorder is related to Disease. Disease is related to Medicine. 
Announce <--Synonym--> Publish <--Synonym--> Declare <--RelatedTo--> Like <--RelatedTo--> Allow 
Change <--IsA-- Disorder <--RelatedTo--> Disease <--RelatedTo--> Medicine 