Pleasant is related to Dream. Dream is a synonym of Envision. Envision is derived from Vision. Vision is related to Sight. 
Go is a synonym of Fit. Fit is related to Alter. 
Pleasant <--RelatedTo--> Dream <--Synonym--> Envision --DerivedFrom--> Vision <--RelatedTo--> Sight 
Go <--Synonym--> Fit <--RelatedTo--> Alter 