Sister is related to Female. Female is related to Chicken. Chicken is related to Partner. 
City is related to Term. Term is related to Mean. Mean is related to Statistics. Correlation is a type of Statistics. 
Sister <--RelatedTo--> Female <--RelatedTo--> Chicken <--RelatedTo--> Partner 
City <--RelatedTo--> Term <--RelatedTo--> Mean <--RelatedTo--> Statistics <--IsA-- Correlation 