Fall is related to Jump. Jump is related to Joy. Joy is related to Happy. 
Like is related to Moment. Moment is related to Brief. Brief is related to Flash. Flash is related to Sudden. 
Fall <--RelatedTo--> Jump <--RelatedTo--> Joy <--RelatedTo--> Happy 
Like <--RelatedTo--> Moment <--RelatedTo--> Brief <--RelatedTo--> Flash <--RelatedTo--> Sudden 