Spring is a different concept from Summer. Summer is related to Weather. Wave is a type of Weather. Wave is related to Frequency. 
you are likely to find Gentleman in/at/on Suit. Gentleman is a different concept from Lady. 
Spring <--DistinctFrom--> Summer <--RelatedTo--> Weather <--IsA-- Wave <--RelatedTo--> Frequency 
Suit <--AtLocation-- Gentleman <--DistinctFrom--> Lady 