Fast is related to Escape. Escape is related to Left. Left is related to Port. 
Separate is a synonym of Split. Split is a synonym of Depart. Depart is a synonym of Abandon. 
Fast <--RelatedTo--> Escape <--RelatedTo--> Left <--RelatedTo--> Port 
Separate <--Synonym--> Split <--Synonym--> Depart <--Synonym--> Abandon 