Integrated is related to United. United is related to Nation. Nation is related to Others. Others is related to Wall. 
Worry is a synonym of Anxiety. Anxiety is a synonym of Trouble. Trouble is related to Board. 
Integrated <--RelatedTo--> United <--RelatedTo--> Nation <--RelatedTo--> Others <--RelatedTo--> Wall 
Worry <--Synonym--> Anxiety <--Synonym--> Trouble <--RelatedTo--> Board 