Announcement is related to Message. you are likely to find Message in/at/on Table. you are likely to find Mess in/at/on Table. Mess is related to Apple. 
Person wants (to) Smart. Person wants (to) Support. Seat is a type of Support. Seat is related to Comfortable. 
Announcement <--RelatedTo--> Message --AtLocation--> Table <--AtLocation-- Mess <--RelatedTo--> Apple 
Smart <--Desires-- Person --Desires--> Support <--IsA-- Seat <--RelatedTo--> Comfortable 