Favorable is a synonym of Useful. Useful is related to Effective. Effective is a synonym of Efficient. 
Arrival is related to Coming. Coming is related to Rise. Rise is related to Empire. 
Favorable <--Synonym--> Useful <--RelatedTo--> Effective <--Synonym--> Efficient 
Arrival <--RelatedTo--> Coming <--RelatedTo--> Rise <--RelatedTo--> Empire 