Principal is related to President. President is related to Campaign. Campaign is a synonym of Movement. 
Dot is a synonym of Scatter. Scatter is a synonym of Spread. Happiness can Spread. 
Principal <--RelatedTo--> President <--RelatedTo--> Campaign <--Synonym--> Movement 
Dot <--Synonym--> Scatter <--Synonym--> Spread <--CapableOf-- Happiness 