Leave is the opposite of Wash. Wash is related to Household. Household is related to Statistics. Correlation is a type of Statistics. 
Reason is related to Slip. Slip is related to Romance. Romance is related to Affair. Affair is related to Hotel. 
Leave <--Antonym--> Wash <--RelatedTo--> Household <--RelatedTo--> Statistics <--IsA-- Correlation 
Reason <--RelatedTo--> Slip <--RelatedTo--> Romance <--RelatedTo--> Affair <--RelatedTo--> Hotel 