Extra is related to Great. Great is related to Passion. Passion can be used for Romance. Romance is related to Story. 
Moment is related to Period. Period is related to Monthly. Monthly is related to Payment. 
Extra <--RelatedTo--> Great <--RelatedTo--> Passion --UsedFor--> Romance <--RelatedTo--> Story 
Moment <--RelatedTo--> Period <--RelatedTo--> Monthly <--RelatedTo--> Payment 